Hey, if anyone has bought this unit you may of had problems with getting the screen to play work while the handbrake is off. I've just installed the unit into my car, and found a great work around if you have "decent" phono leads running from the front unit. I bought a normal amp kit to wire up my subs in the boot. If you look at the phono lead in the middle between the left and the right channel there should be a small wire this runs from one end to the other AKA anti static wire (if not buy another photo lead an make sure it has it) Connect the "handbrake by-pass" wire to this, and at the other end connect that to ur earth (i connected it to my amps earth) Simple Pics to follow!!