@ shonky.geeza - The 4F0973202 PN shown is just for the connector.
I found this on eBay PN 519375216 and it's called out as a Negative Battery Ground Cable / Module.
1.) Can you verify the PN on the your cable
2.) Can you determine where the wires from the connector go? You'll probably have to remove the styrofoam inserts to get a better view.

 

@ BarnstormD -

If anyone knows where that connector goes, please let us know.

 

A quick look at the wiring diagram, the battery monitor (J367) routes through the main harness via a “LIN bus” Wiring disappears into the harness and presumably connects to a control module for reporting (Vehicle Electrical System Control Module (J519) maybe?).

Had to look up the definition of a LIN (Local Interconnect Network) bus and it appears to be something similar to what I commonly see referred to a 'One-wire” diagnostic bus. That is, a low-speed diagnostic bus used to monitor the status of various devices where timing isn't critical. A LIN bus can run independently from your CAN bus.

For more info than you ever wanted to know See:

One-wire buses are a handy troubleshooting tool since they can be used when a system is impaired to the point were high-level diagnostics can't be run. The only connection needed for this bus to work is a single wire which keeps things simple.

 

Okay, great. Yep, there it is!

 

SJP is this set of wiring diagrams available in the knowledge base as the ones I found are 2008 and need the later 2011 ones as I'm trying to work out where the battery monitoring cabling runs to?

 

The workshop manual Wiring Diagrams & Component Locations - 2007 - A005TT20021 includes a number of years 2008, 2009, 2010 and 2011. The dates are marked at the lower right corner of each page. Years 2008 thru 2010 are prefaced with the word "Edition" but this practice seems to have been discontinued in 2011.

Depending on your PDF viewer, you should be able to perform a word search to find the specific item you're looking for; (e.g. "battery monitoring" or "J367"). Note that the schematic shown below is from 04.2011 as is the one above.