amplifier ground connection
 

On a '13 supercab I uses a hole on the pass. Side back seat frame near the floor buffed the paint off and boltes my ground through it. It seems to be working fine so far, but my question for those with more experience is whether that is a good place or if there is somewhere better...the seat is bolted to the cab etc..however would that connection but extra stress on any factory wiring or anything in the area ?

It should be fine if your not getting engine noise.