I replaced my old worn out, cracked plastic dashboard with a mahogany dash. When I placed the ignition switch back in its spot, and tighend the nut in the back, its tight, but it seems like the whole switch wants to turn when I turn the key. The hole for the switch it a nice snug fit, If I put a big lock washer, or star washer behind the nut, and up against the wood, would this help hold the switch in place? Or does anyone have a better solution?