Frostbite

iTrader: (14)

I have a 2000 SS with the monsoon system. Ever since I have had the car, the door speakers have sounded blown, especially the passenger one. I replaced them with some Infinity 612i that I got from a friend. They sounded great at first but the next time I listened to them they rattled just like the others, maybe even worse. So I put in some diff stock speakers, which again sounded great at first, but now you can't barely hear them, even when faded completely to the front. They sometimes work properly and sound great, but most of the time they don't. Is this a problem with the amp or the hu? Where is the amp located?

Any input is greatly appreciated.