I'm thinking of running a switch to my cd player like this: I already have the line coming from the battery because i needed it for the battery wire on the head unit to keep my settings. I want this setup so i can flip the switch to on, turn my car off, and not have the cdplayer turn off. I go to fast food places a lot and turn my car off while i wait, mostly because i have a loud muffler and i dont want to be an ass to the people ordering. My cd player takes like 10 seconds to start playing again because its a mp3cd player and it has to index all the files. Would starting the car with the switch flipped hurt the head unit?