hey everybody I have a 01 996tt without bose or hifi and its pre fiber. I am looking to replace the factory stereo with an aftermarket unit and I know I need a antenna adapter(metra 40-vw10) and a new harness, my question is the back of my stereo has two connectors 1 black and 1 yellow, the other threads all mention bose systems with 3 connectors and some don't even mention what this single wire yellow connector is for? What harness model do I need to make my system a simple plug and play connection and what is this yellow wire for?
Thanks guys

 

Anybody? Or is everyone still running the factory kick *** system.