I took a ScanGauge out of its enclosure and mounted it in place of the stock temp/compass display.
Here's the tutorial of how I fit the ScanGauge in the console. Here's some more info on the ScanGauge and other places that it can be mounted in a Tacoma.
The ScanGauge is really cool. It plugs into your vehicles computer and tells you all kinds of useful info. It displays MPG, engine temp, air intake temp, gas consumed, max MPH, and more. It is certainly worth the $110 that I paid for it.
I replaced the stock mirror with an auto-dimming HomeLink mirror. By pressing the HomeLink buttons, it will turn on lights in your house and open garage doors/gates. It's nice not having an ugly garage door-opener-remote on my sun visor. To power the mirror I just tapped into the power in the overhead console temp/compass wiring. It was easy.
Westin sent me some free driving lights after I bought the Bull Bar, so I figured I'd turn 'em into backup lights. For the backup lights I wanted to do something a little different. I wanted to mount them forward of the bed so that they would also light up the area along the sides of the truck as well as the back. So I mounted the lights about a foot or two behind the front mud flap. They light up the sides of the truck nicely. At night my wife can step out of the truck more easily because it lights up the ground and also the tube steps. I wired the lights so that they would come ON automatically, along with the stock backup lights, anytime I put the truck in Reverse. I used a relay and just tapped into the bundle of wires under the plastic door sill panel. The Reverse wire is red with a white stripe. But I also wanted to be able to turn the lights on whenever I want, so I mounted a small on/off switch in the drop down pocket by the drivers left knee. This is also where the switch is mounted for my PIAA driving lights on the Bull Bar. I used a diode inline to keep the trucks' taillight backup lights from coming on when I turn the Westin backup lights ON manually. The on/off switch just controls the Westin lights. But when you put the truck in Reverse all the lights come on; the stock and the Westin lights. These extra backup lights should help alot when I'm hooking or unhooking a trailer at night.
I didn't take any pics of it, but I also upgraded the stock backup bulbs with some Sylvania 886 fog light bulbs. They don't get too hot, and my truck has the towing package so the wiring should be able to handle the extra load of the brighter lights. The wiring can handle the extra turn, brake, and backup lights from a trailer, so I figure there shouldn't be a problem. I've had em for months with no problems. They light everything up much better than the stock ones. I just took the new bulb and cut the terminals down close to the plastic base, then just stuck the terminals into the stock bulb outlet.
*UPDATE*
I just upgraded my under-cab backup lights to some larger, generic farm tractor lights. They are brighter and put out a wider beam of light.
