I purchased a 2008 Bambi new off the lot in 2009. On my first trip I found that the stereo system was not working as expected. I decided to dig into it my self as I was a longway from the dealer. I found a little black box that is hidden in all the wires behind the stereo, and believe me the wires behind the stereo are very scary. I was able to identify the box with its model number and down load its manual, I can not remember the specifics now but I unplugged every thing from the radio, mixing box, CD changer, and tv. I labeled all the wires, then using the downloaded manual, I reconected every thing and organized the wires. I also found that the mixing box has a USB input, so I was able to plug in a USB cord, and run it over next to the CD changer. Now I can plug my laptop into the Stereo and use the Airstreams Speakers for my laptop's sound system. Now the Stereo works very well.
Who ever does the install at the factory needs to be sent to some kind of training, because the stereo system is the only system in my Airstream that has caused me any trouble, not from the equipment, just from the install.