Audio Systems: Factory amp wire colors...., premium sound system, rca outputs

Question
I will be installing a sub in my 2000 grand marquis, was wondering if the factory amp( top of the line radio + changer) is located in or near the trunk.  If so, what is the color for the power on for it?  

one last one, my amp only has rca inputs, i have done this before in my last car, but where would you suggest tapping into the rear speakers? colors? (I assume the fac. radio and amp have no rca outputs)

Thanks for your time...

Preston Trill-
Southern Illinois.....

Answer
Hello Preston,
Before I can give you any details about your radio and amp, please give me the model numbers off the radio and off the amp. If this car has a premium sound system the amp will be up under the dash or located in the trunk. I don't have a book for this vehicle so I can't tell you for sure where exactly the amp is located. Please contact me direct with the model numbers.

TOM,
T&D ELECTRONICS
tdeser@zoominternet.net