Tire Pressure, Who do I trust?

[Tire Pressure, Who do I trust?]

I have a 43 foot MH that has a loaded weight of 20k on the rear and 12k on the front. I assume that the 12k on the front will be split for the chart but with a single tag on the rear is the 10k per side split by 2 or 3???

[AV equipment]

I am trying to find a replacement for the combination DVD/Receiver/surround sound unit in my 2005 Newmar Mountain Aire. I cannot find anything in normal stores, or on the Web, that has the connection capability and features all wrapped into one unit. I have found plenty of large receivers for home theater situations, but nothing with a DVD in it.