My battery dies randomly but recharges easily. The DVD player does not work, nor does the rest of the rear entertainment system (I bought it this way, but did not pay the full value as if it had been working - I would like to get it working, however!). The stereo's fader works fine, but the entertainment system where I can run a separate sound system/radio station in back for my kids on infrared headphones - or 'live' - does not work. I have taken it to the dealer and ahve been advised I need to spend $1200 on a new DVD/entertainment unit, but I have a suspicion it's the electrical system - a short somewhere?, as I seem to be having recurrent problems with that. Any advice?