I did a search using the keywords "remove stereo tacoma"
One of the threads had this link
Basically just get a spatula, slide it under the AC control panel and pop out the panel. You will then see 4 10MM phillips head bolts. Remove those 4 bolts and then pull out the radio. Really simple.
Here's the wiring color codes from a previous post I made.
Originally Posted by cam2Xrunner
I installed the ne774v right behind the factory CD player. The cd player is pretty easy to remove. Get a thin flathead screwdriver and carefully pry up the bottom of the climate controls for the ac/heater. The control panel will pop off and you will have access to four bolts holding in the cd player. They are 10mm bolts. Take those out then pull on the bottom of the cd player. It will pop off. Pull it out and you will have access to the wiring.
Front left + is a pink wire
Front left - is a purple wire
Front right + is light green
front right - is blue
Rear left + is black
Rear left - is yellow
Right rear + is red
Right rear - is white
The turn on acc. lead that you can tap into for the amp is a very thin grey wire. There are two of them however. To find the right one i turned the car radio on and snipped the first grey wire, the radio turned off, so I knew it was that one.
On the LOC there will be a color chart that shows which wire of the LOC goes to which speaker, you will have to match it up with the color chart i listed above.
On the LOC there will be 4 individual gain controls. Find out what the max voltage input is on the amp and try to match it with the LOC.
The 12V power supply is a blue wire with yellow strip, the ground is brown.