There’s possibly a ground wire thats come undone or came off where its supposed to go on at. I know the fuses were constantly blowing instantly when my radio’s ground wire was undone. It had come off the metal where it was previously attached. Was sitting there not connected to nothing. But when I plugged the ground wire back on to the metal, no instant blowing of the fuse the instant I turned the key anymore. So just having a ground unhooked caused my fuses to blow the instant I turned the key on. Good luck, post your solution when you find it out. Thanks!