In order to change the driver's side headlight bulb on my wife's 2002 Elantra I had to remove the battery to gain access. When I was done and everything was back in place there was no power to the radio. Nothing at all. Everything else electronic in the car functions properly. Of course I checked all the fuses in both fuse boxes and all fuses are fine. What I haven't done yet is to ascertain if there is a fuse in the stereo unit itself, anyone know? (I called the loacal dealer but they didn't know the answer) Any other ideas what might have happened or what to do? Thanks!