The remote wire on the factory radio in a 2005 F150 Ford Supercrew is usually blue. The remote wire is used to connect extra things to a radio that are not already factory installed.
black
Yellow Wire.
If you are unsure of the remote wire, locate your radio fuse and get a fuse connector. hook it into the fuse and run it wherever you need it. all the remote does is swith the equipment on and off.
Why bypass amp just get wiring diagram and hook up remote"blue wire" to the remote lead from factory amp. Or unplug amp use a meter and check which wire has power. Then turn off radio and check wire again should have no power with radio off. This will only work if factory radio is still installed. But that wire would be remote wire. Just hook up new radio remote wire to the found wire. Then connect speakers to factory plugs and use the amp.
go to the12volt.com
blue and yellow
two orange cables
color code fro radio hook up
i can be done is you hav ethe AUX ports and some sort of remote wire to tell your amp to turn on while your radio is on.
go to crutchfield.com or the12volt.com
if you are using an aftermarket wiring harness hook up the remote turn on wire on the new radio it should be blue with a white stripe to the harness also has a blue and white stripe and plug it in this wire turns on the factory amplifier if you are not using a harness you will have to locate the internal amplifier wire of the radio and connect that to the remote turn on on the aftermarket radio = answer = the inernal apm power wire is white on the black wire harness ANSWER if you dont want to use the factory amp. just run new speaker wires to each speaker.
you have to power the remote wire, splice it into the power wire, it came with a factory amp. had the same problem.