Ok heres the situation, i'm going to refer to night time cuz this is the only time i can visually see this problem. Say i'm stopped at a redlight an obviously my headlights/interior lights are on. Once i take my foot off the brake, with each tire revolution there is a pulse (dimming of light), not so much from my headlights but from the interior gauges. Now once the pulse picks up speed as i give it gas it becomes less noticeable bcuz the pulse is either going too fast or just stops. bare with me, i'm trying to explain this as best as i can. then once again as i'm coming to a stop, you can start to visually see this dimming/pulse of voltage in the lighting. I've taken batt terminals an cleaned them and my alt is only 2yrs old. This hasn't seemed to affect headlights/performance of vehicle. Just trying to avoid bringing to dealership for them to whack money to diag. Any of this ring a bell with anyone??