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  1. 1994 C1500 Firewall Wiring

    Chevy C/K Truck Forum
    Hi all, I’m currently installing a CB radio in my 1994 C1500, and I need to wire the coax antenna cables through the firewall. Are there any preexisting holes or grommets that I could piggyback off of, or would I need to drill a hole? I want to do as little collateral damage as possible...
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