Pop the trim bezel off the front of the radio. Your coach should have come with two thin metal tools that slide into small slots on each side of the radio, if not you can get them at some auto parts stores for a couple of bucks. Slide the tools in each side of the radio to release the locks, the radio can now be slid out of the dash. Here is a picture of the tools, sorry for the poor quality but it will give you an idea of what they look like. Hope this helps.