I had an Alpine head unit for a IVA-800c multimedia unit stolen from my car. It's an older unit, circa 2003, but it communicated with the whole package - computer/ black box, CD changer, separate Alpine DVD, processor, Rosen Vue TV/monitor, amplifier, VHS(even). Alpine Sub, and speaker system. I would like to find a replace-ment that I can adapt with minimal change. Any suggestions?