I have a civic 98 4door and am trying to install a amp for some subs. I am relativly new to installing systems but have done enough for most installations. Just this one i cannot find a way to get the power line through the firewall i know you usually use the holes that are in there but there really arnt anythere.

 

Yes, there are. Do you see those white things from the interior on the firewall, that's split in half? Take one of those off, and find the closest grommet to it. I couldn't find any either, then I took one of those off and found a perfect sized one

 

Thanks When I go out to the garage I will try that.