Rattles are a genuine pain in the a&%e so I appreciate your pain
We have added lots of audio to various models of cars but one of our most popular upgrades is to utilise the original quarter panel location in the new Mini and when we do so it just generates rattles in the plastic quarter panel. To eradicate this we use Dynamats Dynaliner range which is great for panel rattle. It sandwiches between the trim panel and the metalwork and has proven very effective for our purposes
Rattles are the devil