19. In order to do that, we needed to drill the bars to run the wires internally. Gard drilled a main slot in the bottom-center of the Tracker bar and two generous-sized holes in the left and right sides of the bar where the switches will mount. The center slot needs to be large enough to accept both the right and left side switch wiring. After drilling the holes, he die-grinded the holes smooth, and finished them up with the de-burring tool. Bar complete, ready for wiring.