"This is what I did on mine. You have 3 fuses that control the radio. Replace them all. One is a 20 amp and the other two are 7.5's. I did alot of searching on this forum and some one had a similar problem as me. once I replaced the 20 and I got everything else back my radio was still out. When I replaced all of the radio fuses it worked. The fuses wern't blown but I think they were burnt and that caused the problem. once I replaced them all it worked."
it totally got my jvc unit working again (i changed the 2 7.5's but totally overlooked the 20amp). lifesaver, thanks man!