The one in the fender?

Mine was held in place with a Phillips head screw that you will see when you lift the hood. Remove the screw and begin rocking the housing up and down while pulling it towards the front of the vehicle. It may be fairly snug, but it is just a press fit. Once it's out, remove the factory socket from the housing by twisting it counter-clockwise.

Wheeling a Stepside Tacoma on 37s
Exploring in a T4R Ltd V8