Hi, that fuse did not come with your car. It may go to your radio, if someone installed an aftermarket radio in the truck.
Your fuses are laid out in the owner's manual, which you can download here if you don't have one:
Fuses start on page 6-60. The lighter fuse is #2 in the box at the end of the dash board. The instrument lights are powered by fuse #5, but that would be for all of the lights. If only the 2 gage lights are out, you probably need to replace the bulbs. I have pasted instructions for removing the instrument cluster below. Note that you may be able to replace bulbs without disconnecting everything and removing the cluster. It just depends on how much slack is in the cables, so try pulling the cluster out a bit with wires still attached to see if you can do it. Please let me know if you have more questions, and thanks for using FixYa.
- Disconnect the negative battery cable.
- If your vehicle is equipped with a tilt steering wheel, move the wheel to the lowest position. If the vehicle does not have a tilt wheel, it may be necessary to lower the column.
- Unfasten the eight clips that retain the instrument cluster bezel and remove the bezel. There are four clips on the top of the cluster bezel and four clips on the bottom of the cluster bezel.
- Unplug the electrical connections from the headlamp switch, dimmer control and any other accessory switches that would interfere cluster removal.
- Unfasten the four cluster retaining screws and remove the cluster making sure nothing contacts the circuit connections.
- If replacing the bulbs, turn the bulb assembly 1 / 2 turn to the left to remove.
- Install the bulb assembly.
- Place the cluster into position without touching the connector pins. Install and tighten the cluster retainers.
- Attach the headlamp switch, dimmer control and any other accessory switches.
- Install the cluster bezel.
- return the steering wheel or column to its original position.
- Connect the negative battery cable.