Hopefully someone can help.

My old mans van has a kenwood head unit in it, and recently it decided to turn off and stay off. I thought that maybe a fuse had blown so I took the head unit out and checked the fusers. All are fine.

I plug the head unit back in and it turns on and begins working again. I then start the van and the head unit once again turns off, and goes back into safety mode I guess, as I have to disconnect, than reconnect the the head unit to work again. Will work first time after reset in ACC but once the van is started its dead again.

Any Ideas???

Has it ever worked properly? Sounds like it might be wired up wrong or something is shorting out. I'd check all the wiring with a test light and see what you come up with. I hooked one up wrong once and I had no tail lights. Turned out to be the dimmer wire.

It sounds to me like the ignition switch in the van may be faulty.

I have come across this before where the acc feed out is ok until u start the vehicle and then it looses contact internally,

that wouldn't explain y u unplug it and it starts working again, that to me sounds like an internal fault in the cd player

good luk mate.

if your anygood with a test light u will be able to c if you are getting power(x2) and an earth to the player when it stops working. if you have all 3 and it still no good then the player is faulty.

red- 12v when ignition on

yellow- 12v all the time

black- earth all the time

faulty ign switch

faulty deck

or faulty alternator regulator - I have only seen this once. CD player would work at idle. rev it up it would turn off. they dont like 19 volts lol