I have an SUV. I'm considering installing a speaker wall in the back to house four 15" subs. My truck has mild hail damage on top, but the dents aren't small. They're a little larger, but not huge. If I got them banged out and painted the truck, I'm sure filler would be used to smooth out the whole body. Now when my system is installed, will it create enough vibration from the bass to pop out the filler? That's all I'd need. A nice candy flaked paint job with chunks missing and body metal showing. How long will the filler last/stay in place before having to be redone again? Thanx!