Carl, I tried to find your original owners manual from our library of information. There is not one available. I believe the way the system was configured originally was thru the Bose Lifestyle 1 system. You had to select which Bose input you were playing thru the speakers. Unless you are trying to restore to original, this may turn out to be an exercise in futility. There is no one out there rebuilding Bose lifestyle 1 and there related amps that I know of. Also, you had to run your inverter while in transit to power the Bose system. Most folks these days are using a dash radio that plays everything from am/fm, cd player, XM radio and various blu-tooth inputs. I have 4 play lists from Spotify that I use that are over 26 hours each and they play automatically from my Samsung S-8 phone to my Kenwood dash radio.
When parked you can use a home theater blu-ray player to attach the tv and play thru the original home speaker system. Hope this helps, Fred