I'm gonna show you how to install the overhead compass and temperature gauge into your Tacoma if you don't already have it installed from the factory.
First off, get ahold of one of these bad boys:
I got it from our member Sideways. He steals them out of cars. He'll have another sometime soon I'm sure. Mostly because he steals them out of cars. He packed me a sending unit with the console. For a bit i thought maybe you could take the compass out of the console and install it into your own console.. but because of the riveted tabs that would make it very hard to do. Might as well install the whole thing unless you wanna go nutty on an expensive part.. I don't.
So now lets find the plug for the sending unit for the temperature gauge portion of the console. You have to fish for it a bit.. for me, it was tucked away and taped BEHIND the horns. Here's a picture of it looped around in tape off to the left.. (i was laying on the ground, looking up)
The best way to approach this is around the hood latch and reach your hand under the horns and pull the tape away:
Now lets grab the sending unit
and install it into the new found plug
Here is the stock location for the temp sending unit. The sending unit's white clip attaches it to the hood latch bracket
We're done here. Time to move inside. I have already done the mod to make the map lights come on with the dome light. I'll show you how to move that mod over to the new console too!
Start by unscrewing the only screw in this entire mod, located inside the cup holder:
Pull down on the front of the console. Its held on by these little snap connectors, so give it a good yank and it'll come loose
Slide it forward and unhook the back of the console from the headliner. It will be very obvious
You'll have the two plugs only if you have not done the dome light mod.. for me, that black wire is my dome light mod's wire.
Now lets walk our old console inside next to the new one. (Again, these are steps you can skip if you have not and will not do the dome light mod.) Notice where my diode is.. this was an awesome spot. I want to resolder it in the same place on the new console. I left it tooo exposed last time, so i'll clean that up a bit.
So lets unsolder that guy
Tada. now I'm just gonna clean up my own install a bit. You can also see how i'm expecting to connect the black wire still in my truck to this console with that clip at the end. I like this because it makes the console removable.
Now just reverse the process to get it back up there. I hooked up my black wire first, then hooked up the two plugs. Install the back of the console first with the hooks and then snap the snap connectors in. I'd have pictures of this, but it got dark. So here is proof that both the mod for the dome light AND my temperature / compass actually work.
Now, if you just wanted to add JUST the temp unit directly to your unit in the space where the garage door opener is on your current unit, Car15 figured out how to do it. Below is a picture and description, found on page 3 of this thread:
He ended up using epoxy on the tabs, and screws/washers where the plastic rivets go.
You need to have the two parts (the temp screen/unit itself and the cover plate) Good