I think i toasted the Harness on my Foglights, I got the PIAA extreme whites off CustomMax, and they were awesome for like....2 weeks, tops. Then they stop so im figuring that prolly i was a lil sloppy with the install and got some gunk on the bulbs so they fried. Well, today i was replacing them, when i noticed the metal on the base of the bulb was all discolored, and had an almost rainbow shine to it. So i assumed that this means the harness is gone. am i right? and how much does it cost to fix it provided i wanna do it myself?
lastly, is it something i Can do myself.

Thanks