Moved to the Car Audio forum.
This forum is dedicated to CarPCs and installing them in your car.
The car audio forum is dedicated to integrating your car audio system with your CarPC.
For specific questions related to car audio equipment systems that do not include CarPCs, I would recomend checking out car audio specific forums:
There is a chance that someone on here might have an answer for you, I would just hate for you to wait around for it when I know you could get an answer much quicker on a dedicated forum.