I already did this. I did it out of couriosity. I had parts laying around and it worked. Look around for old power adapters you may have. Mind you the radio was a simple low power cd player. Find one that is 12 volts conterted to household voltage and amps that match the radio. Of course this is for the head unit and a couple of small speakers. The draw is small enough. But there is no way you can subs and amps...without having to buy alot of stuff. This is at your own risk info. Don't blame me if it doesn't work the way you would like. Ask an installer first. G/L