The big red wire? I am almost positive it is the factory ground. My car had the wire and I didn't realize it until the antenna decided it would be the ground for the radio..... otherwise I managed to hook my deck up to factory amp in the car, kinda wish my car had the EQ option........ Hope you figure it out
Hello all, I own a 87 Bird LX and I can't seem to figure out the wiring for the radio. I'm installed several radios before but this one is different since it has the EQ. I bought one of those Scosche harness adapters and hooked up the speakers, the power, 12V constant, and ground. But It wont come on. Also where does the red wire that came off the back of the stock radio go? Thanks for any help or advice.
