What is the accessory wire for radio?
What is the accessory wire for radio? The wire that still shows 12V is the accessory wire, which is usually red in aftermarket wiring harnesses. If only one wire ever had power in this step, it is the accessory wire. Where does the yellow wire go on a car stereo? The red wire is for the 12 volt ignition, which can be attached to the stereo. Where to find an ignition 12V wire in a car? It now resides in the glove box. I also found a couple of accessory fuses slots unused in a fuse box behind the passenger...