oldwildman
Senior Member
We have a 2005 Tiffin Phaeton. We would like to upgrade the stock radio/cd player with a new unit with at least carplay and bluetooth. I took out the existing unit and here's the model number. 4L2T-18C815-DA. It's a Ford product that was installed in many 2001-2005 Ford cars. You'd think there would be an wiring harness adapter like they have for cars. But, if there is, it's keyed to the make and model of car, not the model of the radio. I doubt that Tiffin ordered a special radio instead of just using an off the shelf unit. But I've been wrong before. I've talked to Crutchfield and Best Buy and no joy. The only solution that they suggest is to cut the RV harness and figure out all the wires. That ain't going to happen! Especially when they say the pin out of the radio is a bit vague. Has anyone done a successful swap?

