I replaced mine on my 2003 Dynasty. The guys at Elite Repair and Remodel in Harrisburg OR has a source for a great replacement (also the full instrument cluster panel), but I don't recall who it was.
BTW great shop, those guys worked at the Monaco factory until it was moved to Indiana. They know these coaches incredibly well. I drove there from TX to have a lot of repairs/upgrades done and it was the best idea I have had for my coach.