Originally Posted by Alan

Assume your GTS car is actually an Auto? if you have a manual the configuration is different. Anyway you don't want to connect to both wires there only to one, the ground needs to go to a Brown Ground wire - there is a ground point available (either behind the plastic panel where that connector is - or near the tools tray Battery GP). For a manual connect to the Blue/Black wire as in Rob's photo. Back at the CE panel this is connector U12 (not U11).

Post a picture of what you have in that location.

Alan