[par4tom]

To power the radio with the key off, there is a relatively easy fix.

Pick up a constant 12v signal (that means it has power even when the key is off) and connect that to the 12v turn on wire on the deck. I'd pick the constant 12v signal from the 12v wire feeding power to the deck.


Then...place a simple toggle switch in line. This way, when the key is off, you can still listen to the radio by flipping the3 switch.

AND...if you want to get really fancy, leave the existing 12v turn on wire from the ignition hooked up to this same 12v turn on wire to the radio. This way, when you turn the key, the deck always fires up without having to hassle with the toggle switch. And when you want to listen to the radio without the key, no problem. Just flick the toggle switch.