Hey guys, so I’ve got an 03 sedan I swapped out the radio for an aftermarket single din worked great for a long time but started to have issues recently. It would periodically turn itself off then on after a bit, now it’s just gonna completely black (no power). Bought new radio thinking it was issue but no luck!. Went to check the fuse, it was still good but sparked when I put it back into the box under the hood..

if anyone has any suggestions on what the problem could be id appreciate it! Thanks