What does this sound like? My lights dim when I come to a stop (interior as well as headlights.) They brighten back up immediately at the stop. Sometimes in stop and go traffic the lights flicker. This has been happening for awhile. The alternator is a few years old and is a rebuilt Bosch. The battery is from about a week before the alternator. I haven't noticed any change in the radio (volume or tape speed) when this happens and this happens on short trips or after an hour of driving. Anything I should check or do?