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Going through the firewall on 2019 Sierra

attroll

By attroll
in 2019-2025 Silverado & Sierra

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attroll Enthusiast

attroll

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Posted

I want to try to add some accessory switches inside the truck.

I need to run a few wires through the firewall to the outside of the truck.

I would like to do this without drilling any holes, if possible.

Is there anywhere in the firewall where this can be done or does anyone have any suggestions?

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