I installed an amplifier on the rear wall this weekend and have been driving around without the rear seat so I have access to the crossover and volume settings. I also haven't reinstalled the rear carpet or whatever you'd call the cover. You don't notice it with the rear seat in place, or at least I didn't, but those rear air vents let in a ton of road noise. What have some of you done to quiet it down. I'm thinking a thick piece of foam between the rear mat and the vent might help and still allow air flow. I did a search, but I don't see this issue coming up, at least with any of the words I've used.

 

dont block them, causes hvac issues,cab has to have em. i put pics of what i thought was best in my gallery.... some kind of cap or smthn that is open on the bottom,

 

The foam is breathable, but it could restrict the air flow to some degree.

 

all u can do is try, if the cab doesnt breathe it wears out your hvac faster

 

I usually run my A/C on recirculate anyway. That shuts the vent door in the front. But I turn off recirculate in the winter for the heater. I'll post negative results if it doesn't work right. That's for the replies.