I like to use my 4Runner for camping and it is nice to listen to the radio while relaxing, getting ready to turn in... I sleep in the back. My head unit works off of a remote, so it's nice to change volume, channels, etc before bed.

But, to turn off the radio I have to reach and turn off the igntion key so I won't run the battery all night. That part sucks cause I am lazy and sometimes it is cold.

My idea is to run an additional 12V power source through a switch located at the back of the 4Runner. This switch would tie into the "acc on" wire at the deck. With key off, I can flip the switch and deck will power up... in theory. Of course flip off to turn off deck.

Any input as to wether this will work... or a better solution? What might happen if I have the new rear switch to "on" and then the key is turned to acc. at the same time? Where would you put the fuse to stop potential problems?

 

This can be done with a simple toggle switch and a relay. I will pm you a drwing of what to do