I own a 2004 g35 and i installed the p4000 hu about 2 months ago. I never installed for the parking brake wire so i never watched any dvds. my girlfriend always complained about the dvds so i went and bought a toggle switch and connected 1 to the ebrake and 1 to the ground. when i start up the HU and put in the DVD, i see the blue screen and i toggle the switch up and down and and it will allow me to press okay. Now heres the problem, when I toggle the switch and bypass the security feature, i can ONLY hear the sound from the dvd but NO video output. I can see the control buttons but the rest