I've got an 04 Monte & it looks like my alternator is going bad. I know it isn't the battery because it's new & the power gets drained almost immediately after I start it up. I'm almost positive it's the alternator since it hasn't been changed yet. So I was looking to get a high performance alternator since I plan on adding subwoofers eventually but I'm looking for the best price. Any suggestions on a website or a brand would be greatly appreciated.