Posted January 6, 201114 yr Anybody ever break through the firewall on a 2005 (and up) Grand Prix? Wheres the grommet, what the hell?First time running wires and i'm stumped.Some tips as to what I should do if i can't find it would be helped.
January 6, 201114 yr if theres no way you can get it through with grommets, find a big ole drill and a bit and drill through it minding where it's going through, or you can run under the car. and then drill through the trunk floor.
January 6, 201114 yr my friend has an 08 grand prix, he had a shop run all his wires but i believe it was on the drivers side if that helps any.
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