Hi there i want to run a power cable from the battery to the back of the car for an amp. Ive looked and cant find a part in the fire wall where other wires go in to the cab. i dont want to make a new hole. Does any one know where theres an opening? thanks message back

 

hopefully there aren't any open holes, then you'd be getting moisture and who knows what else inside your cab.

Normally when I run wires through the firewall I just follow the harness as you did and just poke a small hole in the grommet and force the wire through, then put a sealant or silicon over it on both sides.

 

Thanks for the reply it's hard to follow the harness cause the moter is so far back do you know what side there is an opening on

 

theres usually a couple on the drivers side