Taillight fuse short

Hey guys,

I just installed a aftermarket deck into my 94 altima, and now my taillights will not work. I have put in 2 new fuses and as soon as i turn the lights on it blows. So I was hoping someone would know if the wiring for the taillights run near where the deck is, or would have something to do with dimmer cause that was connected to the stock deck?

Thanks,
Jordan