I have a Pioneer Avh-p1400dvd that I used in my 21RR to replace the Touch audio unit. It willcome with the face plate I made to be a direct replacement for the touch audio.
Asking 200.00 plus shipping.
Shipping is from zip 53105 USPS only.
Amazon.com: Pioneer AVH-P1400DVD Mobile 2-DIN Multimedia DVD Receiver with 5.8 In. Widescreen Touch Display and USB Direct Control for iPod/iPhone: Car Electronics
This comes in original packaging with manuals, harness, hardware, remote, and the emergency brake bypass already installed.
It was in the trailer for just short of 3 months before we bought our new hauler.