Just had to show this "Rube Goldberg" set up.  Pickett had cobbled up an old car radio as a source of music.  The set up included a "pig tail" that allowed both a CD and XM Radio to be played through the radio.  Since it was a car radio it supported both front and back seat speakers so the extra set of speakers were hung on the outside of the camper.

The only problem was that the DC generated by the RV inverter was so "dirty" that another power source had to be used.  Note the jumper cables from the car starter.. worked great..!!