Easiest Wiring Route through Firewall?

[preeble]

I have an 87 911 and want to run RCA cables from the stereo into the front trunk for a subwoofer installation. What is the easiest route through the firewall for these wires (with minimal taking apart the car)?

Thanks.

[david914]

There should be a hole (~1 inch diameter) behind the radio that some of the factory wiring goes through. If you're careful, you can probably squeeze the RCA connectors through without too much difficulty.