2004-silverado-switched-power-source Apr 2026

This requires a bit more navigation than the fuse box. 3. Ignition Switch Harness

According to multiple Silverado owner forums, the most reliable and easiest place for switched power is the passenger-side dashboard fuse box. 2004-silverado-switched-power-source

What are you trying to power (e.g., dashcam, CB radio)? Are you comfortable using a multimeter to verify the power? looking for accessory switched power This requires a bit more navigation than the fuse box

Use an "Add-a-Circuit" (fuse tap) for a clean install. Note that this is often a 3-pin fuse slot, so you may need a specialized mini add-a-fuse. near the parking brake mechanism

Behind the plastic knee panel on the driver's side, near the parking brake mechanism, there is a relay block.

Look for a thick white wire in the ignition wiring harness.