Hi Guys, I've got a 96 Mystique with a 2.0L. Whenever I come to a stop, the car growns and shakes. Has anybody come across this problem or have any possible solutions? I know abit about cars, but you folks know more I'm sure. Thanks.

96 Mystique, 2.0L ATX, tinted windows Head unit: Premier DEH-840MP Front Speakers: Phoenix Gold 5x7's Rear Spreakers: Pioneer 6x8's Sub: 2 12" Pioneer Premier TS-W1240C's Amp: Pioneer GM-X922