On our 2014 WhiteHawk the red, yellow. and white wire was attached to our TV but had not been hooked up to the Jensen system.....I had to actually remove the radio system from the cabinet to be able to hook up to Aux 1....once that was done, then I simply did what's been stated above and great sound comes from those ceiling speakers.
2014 Jayco White Hawk 30DSQB Summit Edition, Glacier Package
2012 GMC 2500HD Z71 SLT 4WD Crew Cab...DuraMax/Allison....3.73 Rear Axle.
2014 Chevrolet Silverado 2500HD Z71 LTZ 4WD Crew Cab...Vortec 6.0L V8...3.73 Rear Axle..(traded)
2011 Chevrolet Avalanche...5.3L V8...3.42..(traded)