If you have a dome light in the truck, you could use a relay off that to "break" the connection to the 12 volt radio. No need to remember. or heck, use a wire off the ignition switch.

Last edited by Gdads51; 05/18/2023 2:16 PM. Reason: language

1960 Chevy C10 gasser- Rabble Rouser
1953 Harley Davidson Panhead chopper