I keep getting a red battery light on the dashboard. It comes on every time I drive it but only for a few seconds to a couple minutes at a time. Sometimes it comes on right away and sometimes not for 30 minutes.. From what I have read it is an indicator that the alternator is going out. I have taken it to the dealership twice and they said they can't find a problem. They said it's probably because of my aftermarket lights and amp, but this was happening before all that was installed. The warranty on the car is going to run out soon and I don't want to be stuck with a dead alternator. Ive heard they are like $1200 with labor from the dealer. What do you guys suggest I do? There is another dealer in the area, that I may have more luck with..