Originally Posted by Archicamper
I finally got mine mostly straightened out last night. I had to pull the unit and connect everything up correctly. The RCA plugs for the TV were in the output jacks and needed to be moved to the input jacks. The A and B speakers were of course wired wrong. It was bad enough that I had to rewire but any wire that was not used during installation had been cut short which made it tougher to properly connect the correct wires.
If you have a TV with an optical output I'd thoroughly recommend ditching the RCA plugs, and instead running a TOSlink optical cable from the TV to the back of the unit. That way you can have Dolby 5.1 from any TV channels that broadcast it, and at least digital stereo for the rest.
(Just select the digital input for audio, I think they label it as 'DOT/DCC' on the screen iirc)
I ran a cheap optical cable ($6 from amazon) along the same path as the HDMI cable)
Alternatively if your TV support HDMI-ARC (audio return channel), and you connect the HDMI cable to the correct ports on both the TV and the iRV then you can just use the HDMI cable for digital audio (unfortunately my current TV doesn't support ARC)