I JUST BOUGHT A 4DR SI AND IM TRYING TO RUN THE AMP WIRES TO THE BATTERY, I CANT SEEM TO FIND ANY WAY TO GET THAT WIRE THROUGH.....IS THERE ANYWAY I CAN DO THIS WITHOUT DRILLING A HOLE THROUGH THE FIREWALL????

 

Try following the hood release cable.
That's the path I ususally use. Or get a haynes manual and find out if/where the spare grommets are.

 

not sure what year your car is, or if the SI is that much different than the LX, but i have an LX, and there's a big grommet with a ton of wires runnign through it ont he passengers side behidn the glovebox... i just punched a hole int hat grommit and ran the wire through for my power inverter... it was a PITA, but it works.

 

not sure what year ya got.. but look for a factory wire gromet and poke a small spike thru the gromet and then hop inside the car and look for that same gromet with the poked spike thru it. make sure the area below is CLEAR OF ALL WIRES... then just use a razor blade to open the gromet up enough to squize the new wires thru.. depending how large ya slit it... alittle bit of silicone around the wire is good to seal it up perfectly so its water tight...

 

Yeah punch an extra hole in the grommet with the big factory wiring harness, there's one on each side. Make sure there is rubber all around your new wire, don't just push the grommet to the side and have your wire up against the metal.

 

^Thats what I did, you just have to remove your battery.

 

WELL YOU SEE WHAT YOU GOTTA DO IS TELL US YOUR YEAR BUT YEAH THERE'S USUALLY A HOLE IN THE FIREWALL COVERED BY A RUBBER GROMMET LOL
I ACTUALLY JUST REMOVED THE WHOLE THING, IF NOT THEN YOU CAN RUN IT UNDER THE FENDER BUT THAT'S A FIRE HAZARD >:O!!!!

 

guess what year a 4dr SI is..... anyone.... i'm pretty sure theres not alot to choose from..... haha

I'm gonna go with 07 or 08....

 

you're forgetting 2006, therefore 3 years to choose from

 

my bad then i was under the impression they where coupes in 06.... i thought the 4 door came out in 07