wirining through firewall 2006 silverado

[Dmax2006]

2006 LBz Does anyone know where you can go through the firewall without drilling for a couple wires

[DmaxMaverick]

Welcome aboard!

Drilling isn't necessary, for a small harness or a few strands of wire.

There are several existing grommets there you can use, small and large. If you are only running a couple single strands of wire, you can pull them through along side another harness already passing. The large grommet above the brake pedal can be pierced so a new harness can pass. Once pierced (careful to not damage the existing harness), you can pull wires through using a wire clothes hanger, after straightening it and bending a hook at one end, then crimping the new wires inside the hook (minimize the snag by closing the hook).