Hyundai Sonata Radio Code

http://Hyundai-Sonata.autoboardz.com/Radio-Code-95-Hyundai-Sonata-Help-ftopict212278.html (Radio Code - 95 Hyundai Sonata - Help me too!)
Help! My radio battery was charged, too, and I need to get the code to my radio for my 1995 Hyundai Sonata. I held the "4" button and turned the radio on and my grid read: dash (-) dash (-) dash ..

http://Hyundai-Sonata.autoboardz.com/2000-Hyundai-Sonata-GLS-radio-fuse-constantly-blowing-ftopict190926.html (2000 Hyundai Sonata GLS radio fuse constantly blowing)
The radio fuse is constantly blowing and we have replaced it multiple times. The first time I ever noticed it was when I hit a dip in the road. Is this a fairly common problem? If not, I'll just ..
« I had a similar problem with a 1988 Dodge Diplomat. Turned out to be a short (pinched wire) in the dome light! That light and the radio .. »
« Is this the constant power fuse, the switched power fuse, or the fuse in the back of the radio? »
« This is the fuse in the fuse panel. It's the little 10 amp fuse. »