Taillight fuse keeps blowing!

[mattsGSTeclipse]

so Saturday night I notice my taillights and gauge cluster didn't light up when I turned the headlights on. Everytime I replace the taillight fuse and turn the headlights on, it blows instantly. I had 5 aftermarket gauges wired into that circuit to light up. I disconnected the aftermarket gauges and I'm still having this problem.

I looked at all the wiring behind the front seats and didn't find anything out of the ordinary. What is a good way to find the problem!?

 

[beating4g63s]

ohms meter, you have a bad ground somewhere.

 

[mattsGSTeclipse]

Found the problem. A wire going to my dr. Side halo was bad.