i was wondering if anyone has installed a free air sub into the cab of a pickup, and some sugestions on which ones work the best.

 

Where would you install it? Free air subs still need a seperation of the from of the sub to the back of the sub. Kinda like door speakers are basically running free air but, the front of the speaker is sealed off from the back and the inside of the door cavity acts as an enclosure. Free air subs in a trunk basically use the trunk as the enclosure. Where are you talking about putting free air subs in the truck?