The fuse box you will be looking for is going to be located in the right hand door jamb in the end of the instrument panel. Here is an illustration of that.
The fuse will be fuse #20. Here is the placement of the fuses.
Keep in mind that in addition to the fuse, there is also a relay labeled PRK Relay #28 in the same location. Here is a wiring schematic of the complete park lamp wiring system.
Feel free to contact me with any questions or problems. Good luck!!!!