My dealer, Aberdeen RV in Aberdeen, MS., corrected all the issues mentioned in the above thread, under warranty. My in-dash DVD player will play on both the in-dash screen and on the tv. The sound from the tv, both tv sound or DVD sound, will come through the sound system using AUX1 and AUX2. The sound will also work on inside or outside speakers.
None of the above worked when I took delivery (my error.... I was in too much of a hurry and rushed the PDI). When I took the unit back a month later they corrected the sound issues in about 2 hours.
I know it can be done. Wish I knew how they did it. Maybe a call to Jayco will help. Tell Jayco that Aberdeen RV can correct the sound issues. Maybe Craig, the technician there, can help / advise other dealers how make the customer happy.
PS... I had to make the tv work while "in-motion" myself (purple wire)
Mike & Gail
2011 Greyhawk 31SS
prevoiusly had a Jayco Jay Flight 26BH - loved it! :)