I was just driving along in my 2003 screw and the radio (factory 6-CD in the dash HU) stopped working. It totally powered off and would not come back on. I didn't loose any other electrical features (AC display, dash lights, etc). After I pulled over to the side of the road I turned the engine off, checked the fuses -no problems - and started the truck back up. Radio worked fine, but I had lost all my presets. I haven't checked the battery terminals yet - I know that's what you guys are going to tell me to do, but I just tightened tem both up about 4 days ago after changing out my fuel filter. Any ideas? I was listening to a CD at the time this happened, but I don't see why that would make a difference.