Originally Posted by redlude99

I've had the AEM pullies for about 2 years now. About 6 months ago, my battery was dying so I got a new one. The shop did an alternator test and it was failing which caused the battery to never charge. I never thought once that the pullies could have caused it. I've got the stock sound system other than an Alpine HU. I guess I'll have to keep an eye on my battery/alternator and hope that it doesn't happen again.