I've done 4 F150 installs. Put the amps behind the seat all 4 times. Never had an issue with heat. Just get good amps.

Err.. to think about it, I actually had heat issues once with a HiFonics amp that was i pushing to the max at 1ohm. (It was a different install that was actually under the seat on the floor).

But otherwise. No issue. Even here in the AZ heat, where the interior of the truck easily gets to 160+ after being parked in the sun.

 

Okay all:
A little more help if you could, please.

-I am assuming everyone is cutting out the factory insulation to mount their amp:
1) Did you make extra room around the amp (cutout) to keep the unit cool?
2) Are you putting the amp on plywood or something, then mounting to the rear wall braces?
3) Are you putting any sort of sound insulation there so as to not hear any of the road noise coming from the rear vents?
4) Where are you running the power lines?

Thanks everyone!
-Jimbo

 

I don't have a picture of my set up but if you do a quick search you can find plenty of pictures.

I removed all the factory insulation except for the top six inches or so. You don't have to keep any of it but the black felt does show a bit on the back wall under the window behind the rear seat and gives a more finished look IMO.

I covered the entire back wall with dynamat and punched a few holes with a screwdriver where the vents are so as not to entirely plug them up. I put the amps on 3/8" plywood then screwed the board in up top on the double steel section so the screws did not penetrate to the outside. Mount the amps as low as possible since there is more room at the bottom.

I ran the power lines in the door sill panels. Some run under the carpet. Regardless of how you do it just make sure you don't run them on the same side as the speaker wires.

 

Please see response to questions above

 

1 - Cut out just enough to fit the amps back there
2- 3/8 inch plywood, couple of bucks from Lowes and some black carpet I picked up from Wallyworld
3- I did cover my vents with some of the extra carpet; it is thin and allowed enough air flow but cut down on ALOT of the noise.
4 - power lines... you have alot of options a quick search will produce alot of pics.

 

May sound like a dumb question. Could someone explain how to remove the rear seat to access this area. I have an 08 F150 Super Crew.

 

https://www.f150online.com/forums/ar...08-my-way.html

 

I HAD mine installed in the headliner and had nothing but problems. Was pretty good for a little bit but then i noticed it was heating up alot. It is a US amps 100 hc. Not too many places to hide that baby lol