Just like the title says, I did the bypass and was able to watch dvds while the car was moving. Then I got a pioneer nav dvd disk and installed it(well i dunno, i just stuck it in there and the maps worked) and now when i start moving the dvd wont play. It tells me watching is prohibited blah blah

also when i first start the car up it says "improper connection to parking brake"

Where did you get the disc?

pioneer website.

I found the problem, the mute wire had worked its way out. got it back in there and it worked