Contour Enthusiasts Group Archives Forums Modifications Audio how do you hook up amp and subs to factory radio

You have to buy an adaptor (don't know the exact name). It hooks up to the 2 rear channels (through the rear speakers positive and negative) and allows you to run the RCAs. The signal wire from the amp will have to be hooked up to one of the ignition wires (positive) going into the factory radio.