We have a 2009 Chalet (32C) and need to replace the stereo system for the coach. Old system had CD/DVD option in addition to radio and played TV through coach speakers. Local RV shop couldn't recommend anything for us. Looking for any recommendations. Ideally would be Bluetooth capable. Also, any recommendations on how to turn off truck radio without disconnecting chassis battery when we are boondocking? Trying to stop parasitic drains...