Adding 3rd brake light

[Thundarr]

I'm doing mine as we speak, but its the stock conversion style with LEDs.

Running the wire is really easy. Pull the exterior cargo light and the interior dome light. You will see that both lights have loose wiring that travels in the cavity over to the drivers side area where the fuel filler enters the cab. You can just feed the one positive wire right next to them with no fish rod or anything. Its wide open and easy to do. Chase that single wire under the carpet up to the fuse panel and tap into the rear brake lamp fuse location. Make sure to tap in at the out-going side of the fuse panel so you don't bypass the safety of the fuse and end up frying your $300+ fancy brake lamp. The ground can be joined right there into the same line as the Cargo and Dome lamp.