To all you Gen4 Taurus owners (2000+):
(if your system is going in the trunk)
In the trunk on the left hand side near the RCU and antenna is a gray or black connector. I believe this would connect to a factory CD changer. There are three wires attached to the connector:
When used properly, the Purple/Black wire can be used as a remote turn-on wire for amps or your cap PC.
Red/Yellow - Constant 12V+
Purple/Black - ACC 12V+
Red/Gray - ???
Extra tip: On the right hand side behind the trunk light is the connecter for the light.
This is helpful if you are interested in adding some lights to your trunk. Wire some neons are shown above and they will turn on and off when opening and closing the trunk.
Green - Positive
Black/Red - Negative
Also, visit this website: Taurus Car Club of America. Espically check out the forum. Lots of knowledgeable people there and even more knowledge to be learned. My name there is also d_sellers1. See ya there.