When I try to install my cd deck in my grand am I cant get the deck to power up. I have double checked all the connections and they look good. I have checked the power to the wires and they all have the volts they should have. And I do have the correct wiring Harness. Could there be a factory AMP in my car causing this?
A factory amp will not determine if you have power to the deck, double check the red wire and make sure it has switched power. if not check fuse, and that harness should be a relocation harness or have a black box on it.
You have two plugs, and it looks like there aremore then one yellow and more then one pink or red. Make sure that you have power at all of these.and make sure antenna is plugged in, some radios use it as ground.