I'm just now installing a Pioneer double din 2700BT unit in place of the lousy Jensen that came with my Jayco. It's an easy mod. I bought the Pioneer from Best Buy....I like the 30 day return policy. Four screws to get the Jensen out. Unplug antenna, audio cables, etc. I marked the in and out cables left in the cabinet. Unclip the speaker harness. Now match up the pioneer wires to match the Jensen setup. I used butt connectors. All matched in colour. Plug in antenna, USB cable, audio/video cables, wiring harness......all should work. No outside speakers and no DVD image on the Pioneer screen....does play on the TV. I got a piece of matching wood to make a new face plate and ordered a trim ring for the head unit. When done, will look near factory.
Here's a video to get you started....he's got a few good tips there....I expanded on his mounting method a bit...PM me if you have questions.
https://www.youtube.com/watch?v=zT68lTEexsA
