On the tv issue, our tv only has an audio out via the optical port. I purchased an optical digital converter and used a short optical cable to the converter and plugged in the rca cables (left and right audio) that are pre-installed by the factory. On the surround sound side I plugged the rca cables in to the aux 1 port. Now we have excellent surround sound from the tv. We mute the tv and use the surround system. We had used a sound bar but it was a pain to travel with, had to take it down and put it up at each stop.
I also ran my own rg6 cables from the front tv to the rear tv and put a satellite in port in the rear passenger side compartment. We use a ground HD Direct Tv antenna. The power inserter is mounted under the front tv and our DVR is also in the cabinet under the TV. For the rear TV I installed a companion receiver and a blue ray player. We set the system up as a whole home network. Now we can play anything front or rear and have the surround sound and DVD player front and a separate player in the rear. Works out as a very nice setup, just took a little work. As an addition I purchased the off air converter box from direct tv that put the local TV channels from the over the air antenna tv into the satellite TV guide so that we can use the DVR to record and pause the over the air signal.
JimF, CWO, US Army Ret, 100% DAV
2011 Georgetown 378TS
2008 Dodge Caliber Toad