Just bought my first classic car. 1966 Cadillac DeVille drop top. Just had a JL Audio system installed. 1 12" W7 in thr massive trunk. She rattles like crazy.

What is the best sound deadener for the money that wont damage my vehicle and that can be removed sometime down the road? This car is original and worth money so I dont want something that will ruin the vehicle paint.

 

Thanks

Easily removable and effective as a deadener/dampener don't go hand in hand.  That being said, deadener isn't for rattles.  First step to stop them is to find them.