Okay so at night i'll be driving down the highway and my lights will do this weird thing. It doesnt matter the rpm, if I even have cruise set, the headlights will like flicker, they wont flicker on and off. They'll just get really bright for like a second, then go back to normal? The dash lights up too then just goes back to normal. The heat even, it will blow really hard then go back to normal when this sudden little "surge" happens I guess you could say, I have no idea, I was thinking the alternator, what about you guys?