So I had a friend install a head unit into my 2005 Mustang with the Shaker 500. After I got it back from him, my left head light wouldn't turn on, my right brake lights won't turn on and my door subs weren't working. So as I was checking fuses, I noticed that the #26 under the hood(radio) fuse was blown so I wondered how it was coming on then. So I looked behind the dash and saw that the radio was spliced into the power for the 12v plug-in on the dash. I put a new fuse in, but no luck. I then checked with a multimeter and saw that I was not even getting power to #26 slot in the fuse box. Every other fuse works, both under the hood and behind the kick panel. My alarm isn't working either. I'm thinking this may be a problem with the Smart Junction Box. Does this sound like a possibility and if so, how can I check it?