PART 1 JBL 12" Subwoofer Free Air speaker install. How to and walkaround.

[@carlbradford6586]

I have a 2009 Cadillac DTS which has a 10 inch sub in the rear deck. I been watching alot of videos on free air speakers. You put two 12s free air dam I never thought of adding another 10. Great video

[@banshee2see]

Thanks for the feedback!!! This rear deck had alot more room then alot of cars I've owned so went as large as possible. Haha