I decided to upgrade the stock headlights to a set of LED headlight lenses. I plugged them into the stock harness to test them out before I mounted them and both worked fine. I went to mount them, turn the headlight switch on and neither will come on now. Running lights and tail lights come on. Are the headlights on a seperate fuse or is there there something else I need to buy to get these to work properly? (harness, ballast, etc) Thanks!