Our 2004 Designer has wall-mounted speakers around the rear living area and the table & chairs. Wires run behind cabinets and down to the tuner on a shelf under the TV. The jacks are on the back of the tuner - not in any permanent mounting. Hope this helps.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, and Mindi (dachshund)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.