I would like to show all how to pass a power wire through the firewall. I know that there is no pictures that show how to do a clean install with a 1/0 or a 2/0 wire. I know that people do not want to run the power wire over the STB and through the grommet, that makes the engine bay look like hell, I also know that people do not want to enter the door accordian tube.
so I investigated the engine bay and my FSM and found that there are only 3 places where there is a holein the fire wall, one is the Grommet on the drivers side and the other two are the main harnesses that run into the engine bay.
I ran my wire through the wire harness on the passenger side of the vehicle
remove the MaxiFuse relay center cover
locate the engine wire harness
remove the factory sealant to expose the plastic connector
remove the plastoc connecor with 7 mm bolts
drill a hole that is the size of your power wire
this is the most sensible position to run the wire. The factory wires are gluedto the plastic connector. you cannot remove these wires to get a power wire through there.
run the cable along the fender with the fuse, and have it rest on the coolant over flow bottle. The fuse has to be within 18 inches of the battery, the over flow bottle is a perfect spot for this
IN THE CAR. you will have to remove the glove box. there are 3 7mm bolts and then the glove box pulles right out. When the glove box is remove there is a alot of room in there. From the harness on the outside it is a direct shot here you can see where the power wire comes out at. this is looking towards the front of the vehicle
run the power wire away from the SIR and the PCM to avoid any problems
back to the outside:
make sure that you seal the off the area that the wire goes through with high quality sealant
take the factory sealant that is wrapped around the harness, and reapply it
finally reinstall the MaxiFuse relay center cover
and you have one clean install
there is a part 2 coming when the rain stops