i have 4 12 inch rockford p1's on a 1000.1 rockford and it pounds like a mother (121db). Basically my mirrors are usless so i just tilt my rear view mirror straight down lol, and i just look over my shoulder. Maybe thats just and idea lol....jk.

 

your hittign 121db in your car?
Would love to see some pics of your set up in there.

I know mine is not even close to it but then i have never had a meeter aroudn mine either