Firewall Pass through

[Luda]

Just picked up my 05 Grand Prix, Im installing a Aftermarket HU, Alpine Type R 12" in a custom 5cuft enclosure, and of course the amp. now since i picked it up last night, and im at work right now, i havent gotten a chance to look under the hood and in the trunk so im Looking on recomendationson where to pass 0 Gauge wire through the firewall, preferably passenger side, but i can work with a driver side passthrough. as well as grounding locations in the trunk for an amplifier.

[CTKGP09]

on my 99 it was thru the passenger side...not sure about ur style tho...most likely the same tho...grounding can be done on the backseat mounts i have mine grounded by a bolt the i think goes to the bumper(its by the 3 screws that hold my taillight on) it works good

[Golgo13]

a friend with an 04 gp made a hole on the passenger side firewall right where the carpet starts. Make sure you use a rubber grommet.

As far as grounding, he made his own ground.

[Luda]

i used the massive rubber grommet in the passenger floorboard, although i cant get it to sit back in the hole with the wire there so i think i might have to drilled though the grommet and do it that way

[offroadfury6]

i have an 06...peel the carpet back in the passenger floorboard, u should see where wires are coming through a hole right below the glove box. I had to go in the engine bay with a screw driver and poke the rubber boot to make it bigger so i could get the wire to fit.