Looking at the ISO connector that came with mine it will be easy enough to bypass the internal amp with a decent external amp to sort the sound out possibly...... if the sound quality is that shit I will be trying that approach lol

Looking at how my loom is wired is uses the RCA outputs from the Xtron unit - it comes out of the HU then into a transition board which is encased in heat shrink then then goes to a load of RCA connections which then have mating connectors which interface to the Audi wiring look (to amps). The sound is still disappointing - I have Bose!

I did improve things a little bu going in the factory settings and adjusting the levels under VOICE menu. I turned the system up to max (20) then allows the unit to reboot...

I also tried connecting a USB soundcard which is supposed to be natively supported by Lollipop (works fine on my phone via OTG adapter) but no output from Xtron??? I can only assume they stripped out a load of functionality for this car version??? Shame as this would have been a great sound improvement option....

On the xda developers website they have custom builds for these headunits, I'm thinking of trying one of these for shits and giggles, not because I feel I need to but because I can't help but play. I wander if one of these custom ROMS would have the drivers back in them to run the external card?!

Please do so and fill us in what you find

 

So I had a look at the thing in heat shrink that is between the outputs labelled RCAs on the Xtron and the RCA connectors on leads... it's actually an active circuit almost certainly amplifiers... I'm not sure why they are needed if the unit actually outputs RCA level signals... maybe this is the source of the poor quality?
I also installed some USB sockets in the glove box next to the ipod doc, I had to cut a bit of plactic away as well as make the hole of course...

 

Excellent investigative work Dino and everyone else who'd chipped in on the Xtron units.

I've very keen to get one of order but at the same time I'm going to be very picky on the SQ of the unit. So I understand fully, the root of the course is the poor quality internal amp? I'm planning on running an external amp(s) for a lovely set of aftermarket components I've got and sub in the boot

 

Excellent investigative work Dino and everyone else who'd chipped in on the Xtron units.

I've very keen to get one of order but at the same time I'm going to be very picky on the SQ of the unit. So I understand fully, the root of the course is the poor quality internal amp? I'm planning on running an external amp(s) for a lovely set of aftermarket components I've got and sub in the boot

Its not as simple as that unfortunately..The root causes seems to be the Digital to Analogue conversion/pre-amps. So putting external amps on will not cure the problem. This is exactly how I'm currently using the unit i.e. pre-outs (RCAs) then using the car's Amplifiers (Bose). The ideas I have tried are as follows:-
1]
Do the conversion and pre-amp externally using a USB souncard - Tried this and although it worked with my phone did not work with Xtron unit even though it is running lollipop which supports the USB sound devices.

2]
Sending the sound to external bluetooth receiver - Doesn't appear to be supported either!
Another option might be to see if the amplified output i.e. speaker outputs are any better - would need a speaker-to-RCA adapter though....

 

Hi all and thank you Dash for allowing me to kick off this thread.

Manufacturer: XTRONS
Model: PF75ATTAR
Purchased: August 2016
Retail Price: $495.23AUD (Purchased from eBay store. Was significantly cheaper than the manufacturer website)



Steering wheel integration: Very good. Everything works. The volume scroller works great and pushing in mutes the audio. The voice control button will answer/hang up a phone call. The directional scroller works to change song or radio station. The directional scroller will not work with Spotify.

DIS integration: OK at best. Radio stations are displayed as a mHz figure on the DIS, not RDS name. Volume will show up when you change it, but often will show up and not disappear. If you use the onboard CD deck, it will read out the elapsed time as a 00:00:00 figure. I only use Spotify on my headunit so the top part of the DIS is blank.

Interface: Pretty good for driving. Looks very smart and is easy to use on the move. There is a file manager to reach all the back end stuff but there are 'apps' for CD, Radio, and external. There is a feature called "Element" which allows you to choose any colour for the faceplate illumination. The red matches the original lighting. No need to ground a parking brake check wire either, playing of video while driving can be activated by software. Additionally, there is a "Factory Settings" mode which allows you to get into the back-end of the software. This allows you to do things like alter the functionality of buttons on the face panel and change the Android splash screen to a provided car logo (Audi is included), or you can make your own and apply it. I've made an RNS-E copy which is attached below.

View attachment 1

I apologise if TTForum has reduced the size or quality, contact me if you require it in full size.

Satnav: I elected to use iGo Navigation. Seems as though TomTom has lost their way over the years... I paid $27AUD for Australian maps, an additional fee (I don't remember) for Text to Speech which includes various voices in various languages, some do announce street names. I then paid an additional $5 for alerts which includes speed camera databases. It's very handy. I recommend changing the speed warnings to visual only and then activation of such warnings to 110% of limit. The Audi TT speedometer is very accurate and I was having my music interrupted every few seconds to tell me about my unsafe 1km/h over the speed limit habits. The map purchase includes a visual representation of the speed limit for any road also. The Navi button on the screen can be assigned to the app of the owners choice, it is originally assigned to Google Maps. Pressing the button again will return you to the previous screen... For example, I'm in Spotify and press Navi. It will open iGo. If I want to change a song I can simply hit Navi again and Spotify will fill the screen. Navigation will resume when Navi is reselected.

Media Support: There are two included USB cables which can be installed easily as required by the driver. It snaps into the loom. DAB+ is a separate purchase. A single deck CD/DVD player is installed but all audio formats should be playable. A2DP Bluetooth audio is provided but total rubbish so don't bother. The unit supports smartphone screen mirroring for Android or iOS. It's OK, but I found it unreliable. Will disconnect with no warning after a while.

Connectivity: Bluetooth is great on this unit, allows me to easily pair a mobile phone or multiple phones. Your phonebook will display on the headunit and it will communicate with a bluetooth OBD tool simultaneously. The headunit has WIFI which is perfect as I have it download my Spotify Premium playlists when I arrive home for offline playing on the go. A 3G dongle can be purchased from manufacturer. Don't waste your money on an external microphone, I asked politely and XTRONS threw this in for free as a gift (I wanted them to throw in the ELM327 Bluetooth OBD tool instead :lol: ). The built in microphone works just fine.

Ease of Installation: To somebody more experienced this will be easier. This car uses four anti theft 'slots' to secure the headunit. You need special tools or a rigid thin plastic in each slot to free the headunit. There is a video on youtube of Dension showing how to remove the Audi Symphony. I had a local car audio shop pop it for me, they charged me $20AUD, my local VW dealership offered to do the job for a staggering $250AUD. The loom is very bulky, make sure you tuck it all nicely away before putting the headunit in, the top clips will 90% of the time go in easily, the lower is challenging. Take a better look at the bracket in the car, there's a rail designed for it to slide in on. If it's not in this rail the lower half will not fit. Overall fitment is very good, small gap on right side of unit (closest to driver on RHD) but have had multiple passengers think it was OEM. I used double sided tape and attached the GPS antenna to a metal bar behind the dashboard. Seems to work just fine.

BEFORE YOU INSTALL: Decide whether or not you want a back-up camera, if not you need to cut the back-up camera wire and tape it with electrical tape.Otherwise when you select reverse, the music will mute and the screen will go black with an exclamation mark in the centre.

So how does it stack up?

Fitment: 9/10
Audio Quality (Standard Audio Equipment): 7/10
Functionality and Flexibility: 8/10
Speed and Performance: 6/10 due to the user being required to clear cache regularly.
Overall integration: 8/10

Total Ranking: 7.5/10
Final Comments: For me, Satnav is mandatory in a car. I'm no fan of standalone GPS, and having a mobile phone free standing in a cockpit is dangerous. The XTRONS integrates well into the dashboard and is very easy to live with for daily driving. I'm pleased with the unit despite the little nigglies such as the poor cache management. Price was fair, it does what it promises to and customer service is excellent. Though, if the car had RNS-E I would likely not have made the change to XTRONS.

I hope I've been able to make the decision making process easier for potential buyers!

Which wire needs cutting/isolating to disable the camera? A colour or pin connection would ne useful to know...Thanks

 

Not sure this is where to post but I'm interested in replacing the head unit in TT 2013 tdi quattro S-Line fitted with non Bose Concert which does not sound good to me and looks even worse.

First looking with Vagcom I see

Address 56: Radio Labels: 8J0-035-1xx-56.clb
Part No SW: 8J0 035 186 Q HW: 8J0 035 186 Q
Component: R Concert2+ H06 0293
Revision: 00H06000 Serial number: AUZ1Z3N1279384
Coding: 0710301
Shop #: WSC 01236 785 00200
VCID: 3A712C317544B89

No fault code found.

and
Address 47: Sound System (J525) Labels: 8J0-035-223.lbl
Part No SW: 8J0 035 223 F HW: 8J0 035 223 F
Component: Audi TT Amp5K H05 0170
Revision: -------- Serial number: BP208331409415
Coding: 030101060002
Shop #: WSC 01236 785 00200
ASAM Dataset: EV_AudioAmpli5ChannBNO1 003011
ROD: EV_AudioAmpli5ChannBNO1.rod
VCID: 2757E5455EF6351

No fault code found.

Car also has aux input, phone prep, reversing sensors and Multi function steering wheel

Reading the web I was expecting (maybe) the coding for address 56 to be 0624744 and not 0710301

0
6 = Model TT
2 = Optical Parking Aid installed/active...or should this be 0 as really it's ultra sonic not a camera?
4 = Sound Characteristic TT 8J
7 = Telephone Preparation with Comfort Functionality
4 = Analog Input (AUX/PR-UF0/UF1/UF2) installed
4 = Multi-Function-Steering Wheel (MFSW) installed

or have I misunderstood what the coding 0710301 means?

So I wonder if the system is not set up correctly or will a new head unit improve SQ and which head unit?

I read RNS-e has issues with the antenna as it's different set up for Concert/RNS-e and reception will be worse

This thread on the XTRON PF75ATTAR has it's issues too

So what works well without going mad and spending £600 max?

Please advise if I should start a new thread but this feels like I'm looking for the Ultimate after market head unit!

Thanks for any advice.

 

ok - bit more googling and found this on
http://wiki.ross-tech.com/wiki/index.ph ... on_II_Plus

Coding

0?x0xxx: Options 3
+1 = Analog Input (AUX)
+2 = Multifunction Steering Wheel
+4 = Telephone
0x?0xxx: Options 2
+1 = Digital Sound System
+2 = CD-Changer
+4 = Satellite Radio
0xx0?xx: Options 1
+1 = Leather Interior
+2 = Diesel Engine
0xx0x?x: Sound System Correction
0 = Sound System (No passive Speakers/No Correction)
1 = Sedan/Coupé with passive Speakers
2 = Wagon/Avant with passive Speakers
3 = Cabriolet/Roadster with passive Speakers
0xx0xx?: Country
1 = Europe
2 = North America
4 = Japan
5 = China

So for mine it should be

0
+1+2+4 = 7
1
0
+1+2 = 3
0
1

0710301 which it is!

So my mistake as I didn't realise coding applies this way! So at least I know coding is correct for my TT.....still sounds and looks cheap tho'

Also - so why does Leather or diesel engine matter?

 

ok - bit more googling and found this on
http://wiki.ross-tech.com/wiki/index.ph ... on_II_Plus

Coding

0?x0xxx: Options 3
+1 = Analog Input (AUX)
+2 = Multifunction Steering Wheel
+4 = Telephone
0x?0xxx: Options 2
+1 = Digital Sound System
+2 = CD-Changer
+4 = Satellite Radio
0xx0?xx: Options 1
+1 = Leather Interior
+2 = Diesel Engine
0xx0x?x: Sound System Correction
0 = Sound System (No passive Speakers/No Correction)
1 = Sedan/Coupé with passive Speakers
2 = Wagon/Avant with passive Speakers
3 = Cabriolet/Roadster with passive Speakers
0xx0xx?: Country
1 = Europe
2 = North America
4 = Japan
5 = China

So for mine it should be

0
+1+2+4 = 7
1
0
+1+2 = 3
0
1

0710301 which it is!

So my mistake as I didn't realise coding applies this way! So at least I know coding is correct for my TT.....still sounds and looks cheap tho'

Also - so why does Leather or diesel engine matter?

Change it to diesel/cloth interior with roadster.
Apparently that helps

 

ok - bit more googling and found this on
http://wiki.ross-tech.com/wiki/index.ph ... on_II_Plus

Coding

0?x0xxx: Options 3
+1 = Analog Input (AUX)
+2 = Multifunction Steering Wheel
+4 = Telephone
0x?0xxx: Options 2
+1 = Digital Sound System
+2 = CD-Changer
+4 = Satellite Radio
0xx0?xx: Options 1
+1 = Leather Interior
+2 = Diesel Engine
0xx0x?x: Sound System Correction
0 = Sound System (No passive Speakers/No Correction)
1 = Sedan/Coupé with passive Speakers
2 = Wagon/Avant with passive Speakers
3 = Cabriolet/Roadster with passive Speakers
0xx0xx?: Country
1 = Europe
2 = North America
4 = Japan
5 = China

So for mine it should be

0
+1+2+4 = 7
1
0
+1+2 = 3
0
1

0710301 which it is!

So my mistake as I didn't realise coding applies this way! So at least I know coding is correct for my TT.....still sounds and looks cheap tho'

Also - so why does Leather or diesel engine matter?

Change it to diesel/cloth interior with roadster.
Apparently that helps

Correct
It alters the equaliser, more bass & treble
Deeper sound

Sent from my iPhone using Tapatalk

 

Which wire needs cutting/isolating to disable the camera? A colour or pin connection would ne useful to know...Thanks

There are multiple wires going into the ISO box, heaps! Some wires are broken out with wax to protect the ends. Look at the one that is labelled for reverse and cut the wire leading into the ISO. Don't cut the wax tipped one!

I don't remember the colour, but on mine is labelled BACK-CAR. From my research, different units had different labels... so if it's different, find the label that you think is the reverse, cut it, and then try the reverse gear before you reinstall. If its still wrong then resolder and try again elsewhere.

Sent from my iPhone using Tapatalk

 

ok - bit more googling and found this on
http://wiki.ross-tech.com/wiki/index.ph ... on_II_Plus

Coding

0?x0xxx: Options 3
+1 = Analog Input (AUX)
+2 = Multifunction Steering Wheel
+4 = Telephone
0x?0xxx: Options 2
+1 = Digital Sound System
+2 = CD-Changer
+4 = Satellite Radio
0xx0?xx: Options 1
+1 = Leather Interior
+2 = Diesel Engine
0xx0x?x: Sound System Correction
0 = Sound System (No passive Speakers/No Correction)
1 = Sedan/Coupé with passive Speakers
2 = Wagon/Avant with passive Speakers
3 = Cabriolet/Roadster with passive Speakers
0xx0xx?: Country
1 = Europe
2 = North America
4 = Japan
5 = China

So for mine it should be

0
+1+2+4 = 7
1
0
+1+2 = 3
0
1

0710301 which it is!

So my mistake as I didn't realise coding applies this way! So at least I know coding is correct for my TT.....still sounds and looks cheap tho'

Also - so why does Leather or diesel engine matter?

Change it to diesel/cloth interior with roadster.
Apparently that helps

Correct
It alters the equaliser, more bass & treble
Deeper sound

Sent from my iPhone using Tapatalk

Interested to see how this goes

Sent from my iPhone using Tapatalk

 

Which wire needs cutting/isolating to disable the camera? A colour or pin connection would ne useful to know...Thanks

There are multiple wires going into the ISO box, heaps! Some wires are broken out with wax to protect the ends. Look at the one that is labelled for reverse and cut the wire leading into the ISO. Don't cut the wax tipped one!

I don't remember the colour, but on mine is labelled BACK-CAR. From my research, different units had different labels... so if it's different, find the label that you think is the reverse, cut it, and then try the reverse gear before you reinstall. If its still wrong then resolder and try again elsewhere.

Sent from my iPhone using Tapatalk

Thanks..I was hoping for something a bit more...precise i.e. the pin number on the iso connector or something....I don't really want to go hacking all the wires...

 

Which wire needs cutting/isolating to disable the camera? A colour or pin connection would ne useful to know...Thanks

There are multiple wires going into the ISO box, heaps! Some wires are broken out with wax to protect the ends. Look at the one that is labelled for reverse and cut the wire leading into the ISO. Don't cut the wax tipped one!

I don't remember the colour, but on mine is labelled BACK-CAR. From my research, different units had different labels... so if it's different, find the label that you think is the reverse, cut it, and then try the reverse gear before you reinstall. If its still wrong then resolder and try again elsewhere.

Sent from my iPhone using Tapatalk

Thanks..I was hoping for something a bit more...precise i.e. the pin number on the iso connector or something....I don't really want to go hacking all the wires...

It's labelled! No hacking all the wires necessary!

 

ok sitting it car now and coded 0710201 and it sounds warmer and deeper...better....I think!

So I'll give it a week to see how it goes but I must admit it still looks yuk! I think it's that cheap Red display that reminds me of those early day cheap calculators and alarm clocks with the cheap red displays.

TT is the wife's "bucket list" treat - I've a MK6 golf Match which has a lovely head unit, colour, touch screen, SD card slot, parking sensor display and sounds very good. Golf was half the price of the TT too! ok - it does not look so sexy and I do think the MK2 TT looks the best of the 3 versions and is as near to a Porche 911 we will get!

Anyhow..thanks for the suggestion and we will report back in a week or so.

 

Are all of the Xtron units shipped from China? or do they have a UK distributor?

I think I'm going to take a punt on buying the PF75ATTA, I want to order the USBDAB but they're currently out of stock on their website. Leaving a message for XTRON via their Facebook page there's a national holiday from the 1st to the 7th of October... alright for some!

 

Are all of the Xtron units shipped from China? or do they have a UK distributor?

I think I'm going to take a punt on buying the PF75ATTA, I want to order the USBDAB but they're currently out of stock on their website. Leaving a message for XTRON via their Facebook page there's a national holiday from the 1st to the 7th of October... alright for some!

According to the shipping link on their UK website (http://xtrons.co.uk/shipping.html) they ship from a warehouse in the UK and quote 2-3 business days delivery.
I am really tempted by the PF75ATTAR as the unit I have I am not too impressed with. I don't think the wife will be impressed however...

 

Hmm! I'm now thinking of PF75ATTA & the USBDAB too....very tempting!

For satnav I use Waze or Sygic on my Android phone or Nexus 7....would be good to mirror it to this unit (Waze) or install it and use wifi hotspot to access the internet for Waze. I guess I can install Sygic.

Must read more to find out full downside of PF75ATTA and what should it be coded as using Vagcom?

Interesting!

Oh! does this work with iphone 6.....wife's phone.....car has hands free audi phone prep....will it be affected?

I read this unit does not show radio station but MHz channel? tho' Xtron UK web site cites RDS compatible...so is it an issue or not?

Also I read some issue with DIS showing ? radio station/track playing?...must look further..but not an issue for me as long as the units screen shows radio station and track name for music on SD card.

Is there an issue with battery drain? i.e unit not really turned off when you pull the car keys?
Can you put it on without putting key in ignition? If you can then decide to go away will the unit be turned off after a while automatically?

Just a few questions I need to google!

 

I ordered my PF75ATTA on a Sunday and it arrived Tuesday morning so I would say it was shipped from the UK.
Overall I'm not too impressed with it. The sound quality is my biggest gripe but there are also other things like:-
> The glossy screen is hard to ready at times as I get a glare/reflection from back window!
> I cannot turn the unit on if the ignition is off.
> Hardware buttons/steering wheel controls don't work with 3rd party music apps.
> 3rd party music apps don't resume automatically after powering the unit back on.
> Default music app doesn't support playlists!!!
> Boot time is over 30 seconds.
> No adapter is supplied to interfaces to car's GPS antenna (an separate antenna is supplied).
> The unit can be laggy at times.
> Seems to have a very cutdown Android 5.1 - Doesn't support USB soundcards or casting sound to Bluetooth devices.
> Only supports SDHC micro SD cards (32GB max).
> A hardware button to toggle between running apps would be useful - This may be programmable but haven't sussed it yet!
> Screen is low resolution in today's world. especially compated to my S7 Edge.

I haven't tried out many other features like phone interface etc yet.

 

I ordered my PF75ATTA on a Sunday and it arrived Tuesday morning so I would say it was shipped from the UK.
Overall I'm not too impressed with it. The sound quality is my biggest gripe but there are also other things like:-
> The glossy screen is hard to ready at times as I get a glare/reflection from back window!
> I cannot turn the unit on if the ignition is off.
> Hardware buttons/steering wheel controls don't work with 3rd party music apps.
> 3rd party music apps don't resume automatically after powering the unit back on.
> Default music app doesn't support playlists!!!
> Boot time is over 30 seconds.
> No adapter is supplied to interfaces to car's GPS antenna (an separate antenna is supplied).
> The unit can be laggy at times.
> Seems to have a very cutdown Android 5.1 - Doesn't support USB soundcards or casting sound to Bluetooth devices.
> Only supports SDHC micro SD cards (32GB max).
> A hardware button to toggle between running apps would be useful - This may be programmable but haven't sussed it yet!
> Screen is low resolution in today's world. especially compated to my S7 Edge.

I haven't tried out many other features like phone interface etc yet.

I think some of the software issues can be solved or worked around with a custom ROM and some add-on apps. Take a look at the XDA developers site for the MTCD units - http://forum.xda-developers.com/android-auto/mtcd-discussion-questions-development The software is interchangeable between any of the MTCD units. The Malaysk firmware seems to be popular. The 'headunit' app on Google playstore lets you use the buttons/steering wheel controls to control the apps I think?
As for the hardware issues I am not sure...

Andy

 

Oh! back to the drawing board!

 

ADB "I cannot turn the unit on if the ignition is off." Does it not work when the key is in the first "aux" position before the ignition is on?

 

ADB "I cannot turn the unit on if the ignition is off." Does it not work when the key is in the first "aux" position before the ignition is on?

The unit I have certainly does and I suspect most of the others do as well. It definitely won't switch on when the key isn't in the ignition, however the RNS-E does.

I think the TT version of any of these units is so low volume that the manufacturers don't try hard enough to get everything working. I have seen some youtube videos of android units in VW Golf's where everything works and there is full integration with the DIS etc.

Andy

 

On my sons golf he had to have a separate module for the canbus which thenitergrated with dis functions etc

Sent from my iPhone using Tapatalk

 

> A hardware button to toggle between running apps would be useful - This may be programmable but haven't sussed it yet!

The Navi button is programmable on the PF75ATTAR. You can set it to any app. It will back and forth between the screen you had before you selected it and the app you've assigned.

I like to have spotify open with my playlist, then press navi for navigation. As the hardware buttons don't work with spotify, I will hit the navi button again which will minimise the app and show spotify again.

Sent from my iPhone using Tapatalk

 

Are all of the Xtron units shipped from China? or do they have a UK distributor?

I think I'm going to take a punt on buying the PF75ATTA, I want to order the USBDAB but they're currently out of stock on their website. Leaving a message for XTRON via their Facebook page there's a national holiday from the 1st to the 7th of October... alright for some!

According to the shipping link on their UK website (http://xtrons.co.uk/shipping.html) they ship from a warehouse in the UK and quote 2-3 business days delivery.
I am really tempted by the PF75ATTAR as the unit I have I am not too impressed with. I don't think the wife will be impressed however...

Hmmm I need to get an answer on where (china or UK) they are out of stock of the USB DAB's, they don't have a working UK phone number and as mentioned China's on holiday.

RE: the quality and annoying bits, its either make the best of the Xtron or drop £800 - £1000 on a Pioneer unit