I wonder if the other monitor mentioned on the first page is any good? I think the native resolution of that monitor is 800*600, though, and the Lilliput is 800*480, which is better for the 16*9 aspect.

For the question above about hooking the PC to your car's speakers, I used some Mitah cables, a little passive mixer, and hooked my HU and PC into the car's speakers. It works nicely. But, I think now I am going to ditch my HU and get a screen like this (I currently have an in-dash motorized touchscreen) and just use the DMHD1000 HD radio tuner, so that everything can be controlled by the PC.

Please post up the pics that you may have on the mounting of the screen and the HVAC controls.