Thanks for the advice. I took my car to an auto parts store and they tested the alternator. He said the alternator output is low. I mentioned to him about the regulator which he agreed could cause my problem. I bought one and put it on. I charged the battery up and the light still comes on. I'm going to take it back there and have them check it again to see if it got any better. If the alternator is bad then what do you recommend to do? (new after market or rebuild). Thanks.