Just bought a brand-new 303RLS doing a shake down in the driveway of the electronics, having an issue with the Furrion DV1000. When I'm watching TV with the furrion stereo set to auxiliary the surround sound only works on the left speaker. When I set the Furrion to Stero or DVD both speakers work correctly. How do I get the right speaker to work. The balance is set to zero. I tested this on all three zones and I get the identical response only the left speaker works on zone A B or C. Any help would appreciated.