Driving home from the mountains today my e-brake light and battery light were randomly coming off and on. When they would come on, my headlights and instrument lighting would get noticably brighter, then they would dim back to normal when the lights went off. It has never done this before. About a week ago I had a problem with it starting once in a while but cleaned the battery posts and that seemed to take care of that....dont know if its related or not. The battery is only about 6 months old so Im pretty sure it's not that. If any of you guys have any ideas please let me know. Thanks! Oh yeah, its an 89 standard cab toy truck.