I have a 2013 Mazdaspeed 3, I found the radio wasn’t working and found the fuse had blown in the inside fuse box. I replaced it and tested that it would work and it blew again straight away? I’m wondering what could be the cause of this. Tia for any help

 

An auto place just tried charging me $500 to replace my radio, just did this and it worked, you’re a hero boss! 192.168.100.1 192.168.1.1