im the expert now. fuse 7 is in the glove box. you have to release the glove box piston and open it all the way.(so everything falls out) look up and open the fuse panel door. i think it's a 5 amp fuse. as far as the radio its under the spare and under the air compressor if you have air ride. take off the 2/ 13mm nuts and 2 bolts that hold the X the compressor sits on. anything else not working? also in there is the air suspension module, tow module, and parking distance module. one 10mm nut holds the radio in. i paid $300 for a used radio on ebay. there are guys asking $600 for them. hopefully its the fuse.