hi, i was wondering if anyone out there has done an amp install on a 97-03 Grand Prix. i was wondering if there was a hole in the firewall that i could use, or if i will have to punch one myself. thanks alot, pc
There's a grommet very low on the passenger side, just above the foot well. Be careful when running it to the battery; it's easy to get too close to the engine and belts in that area.