Recent Related Threadand Another OneI changed the radio in or 2002 E450. It was 1.0 DIN and it seemed the Hole was 1.5 DIN, not the full 2.0 DIN. I learned that fast, looking at 1. our E450, and 2. daughter's 2005 Explorer which is 2.0 DIN and her husband had just installed an elaborate JVC unit, 2.0 DIN.
One of the two links above mentions at least one "adapter" that's a 0.5 DIN "filler" and our coach already had one. It came to us with a 1.0 DIN Panasonic that the CD no longer worked in. I replaced it with a 1.0 DIN Dual from Amazon that works just great.
Your coach, your time and effort. Personally, 1.0 + 0.5 Filler. Actually I feel more strongly about that NOW, AFTER I had that big dash Face (they call it "Bezel") off, chasing an A/C control problem.
The "RV Radio" if that's what you have, is a good concept, because it offers bigger buttons and a larger display than 1.0 DIN. Just wasn't very good as a Radio... Since I don't do much looking away from mirrors and road ahead, my A-Driver does things like Radio, Phone, etc. Her title is Navigator, but she's actually Bombardier, so beware.
Oh, since you have this E-Series chassis, IF your A/C goes to Defrost Vents on acceleration or climbing grades, with Mode Knob set for something else, get with me about it. Or search WEB yourself. Easy to test and fix, just DON'T tear that Bezel out first!
If God's Your Co-Pilot Move Over, jd
2003 Jayco Escapade 31A on 2002 Ford E450 V10 4R100 218" WB