What color is the ignition wire for stereo?
and run positions and voltage should come back. This is the correct wire for Ignition/Accessory (red wire).
What is the ignition wire on a stereo?
An “ignition” wire provides 12 volts anytime the key is in the ignition switch and turned out of the Lock position. If the vehicle you are working on had a radio, the existing “ignition” wire in the radio wiring harness will probably be red. This is the easiest way to get an “ignition” wire.
What wire is the ignition wire?
A thick red wire that is always energized usually connects here. IGN (ignition input). This is the primary terminal that controls your vehicle’s ignition and other electronics. It may be connected with a yellow or red wire.