Ok, mommiemara, just came in, thanks for the excuse! Turn tour TV on, then turn your stereo on and hit the AUX button. AUX 1 is ceiling speakers, and AUX 2 is tv speakers.
Regarding outside speakers, make sure it says Speaker C ON. Honestly, I never use my outside speakers myself, as campground neighbors may not necessarily want to hear what we may want ro listen to. I'm sure boondocking out in nature, they could come in handy.
Let me know how you make out.
2006 Ford F350 SD Powerstroke Diesel Crew Cab
2014 Jayco Jay Flight 28BHBE
Reese Dual Cam