2007 F150,regular cab
For those of you that are mounting your amp behind the seat (prefer 04-08 regular cabs) where are you grounding the amp?

 

the best place is through the floor down the frame.

 

underneath the seatbelt bolts there is a gusset under the cab. it has holes in it. its on the passenger side there is an egg shaped hole, i rounded that out with a 1" unibit, so i could get a socket in there. i then took a 1/4" pilot bit and drilled a spotter through the cab floor. i used the jl master ground lug. its a nickel plated stud with a nut on top and bottom. this way my grounds are tight, wont ever be a prollem. yes sand metal clean

 

Do you have pics? I was thinking one of the seat track bolts would be a good ground.Opinions?

 

some say no to the seat belt bolts, havnt heard the seat track, some say yes to the seat belt bolts, matter of opinion, really just put a nut and bolt through the floor or a stud bolt its simple if u look at it for a few..

 

seat bolts are fine. i have never had a problem using them before.

 

seat bolts are fine. Im running my 1200 watt with no issues from my seat bolt ground. Just be sure that there is no paint or dirt and be careful tightening everyhting back up...you dont want to break your connector...unless you found a connector big enough to run your seat bolt through.

 

I just sanded a 1x1" square and put in a self tapping sheet metal screw right into the back wall of the cab right next to the amp.

 

I hope you used more then 1 screw and some star washers.

 

I ran it down under the carpet and used the bolt & hole that held down my jack, I'm pushing a 1200 watt and a 440 watt and it sounds great, never had a problem.

 

2nd the jack bolt...........

 

If you've done the big 3 upgrade to the electrical system (upgrade cables to- battery, frame ground, and cab) then it's not to hard to find a solid ground. You can use the seat bolts or run a wire to the frame through the rear vents or use one of the holes under the door floor panels. I have a sub over my jack bolt so that is a no go in my case.