Hey im installing my system from my old civic into my 08 si, but i cant find a hole to run my power from the battery to the back of my car, i cant find one in the engine bay so if anyone knows please help me out.

 

Well, what I usually did was take out the back seat and run the cables under the carpeting, under the sill plates, then up through the firewall (BE SURE TO RUN THE POWER CABLE AND RCA/REMOTE TURN ON WIRE ON SEPERATE SIDES!!!). I don't know about how to get through the firewall of an 08 though, so maybe check out a Haynes Manual, do a yahoo search on it,or just walk into your local audio install place and ask. Never hurts to ask them.
Just a thought (this is what I did on my last car) but maybe follow the hood release cable from the pull lever in side the carto the grommet in the firewall and run your power cable to the battery that way.

 

That car (like mine) BLOWS for getting cable thru the firewall.

 

yeah, well my si came with the premium sound package so it has a sub in it, i bought a HI-LOW converter and was gonna splice the rear speakers and the PWR-On for the amp, so everything is there already just need to run the power cable but i cant find a holE! haha but i might as well just take it in and have them run the cable for $20

 

There SHOULD be an extra hole in the firewall, if not you can always drill one (just make sure you dont drill through anything in the engine compartment)

 

Chances are you will have to drill one
And by the way to clear some info on the power/rca/remote wire issue, very rarely has this caused an interference problem
and when it has, the problem was more-so grounding somewhere else in the car, not the fact that they were close together

 

thanks for the help everyone, i guess ill have to find a place where no wires are going and drill a hole....thanks again