Where is the best place to run a single 4 gauge wire for an amp from the engine bay to the trunk? I do not want to drill holes in the firewall or anyother location?.... If I run it through the boot between the door and the doors frame will it leak? I'm guessing it might for that size of wire, there is a single access on the passenger side of the firewall but will the wire fit through there?

 

in a different car

 

GET A UNIBIT WITH A LONG EXTENSION AND DRILL ON THE DRIVERS SIDE FIREWALL TO THE LEFT OF THE BRAKE MASTER CYLINDER.


OPPS... soory caps lock was on