OK... my friend and I have been working on this install for quite some time now since all the cutting and fitting work has been a hassle.
Anyway... we finally got everything wired up, but for some reason, there's no sound in CD/DVD/Library mode.
The music turns on in radio mode in both FM and AM... and you can hear buttons beeping in those modes and the navigation mode, but there's no music/sound or button beeping in CD/DVD/Library mode.
You can see video running in DVD mode or the timer run on CD/Library mode though.
We've called Pioneer about this and they believe it's a defective uni