Keep blowing the 7.5 fuse for interior light
 

Hey guys (and girls) I have a 2003 HCH and for the most part, have been enjoying it. Recently the 7.5 fuse under the hood for "small light" has been immediately blowing upon a) turning the headlights on or b) using the map lights in the cabin.

I have an aftermarket headunit, but cannot find any shorts and it seems to be all hooked up right there. The reason for my concern is I guess this fuse is for the tail lights too?? The headlights work fine, just seems to trigger the blowing of the fuse. Any help would be greatly appreciated in hunting this down as I work at 3am and driving without tails is a surefire way to get pulled over that early.

Thank you in advance!!

Clint