Anders,
In the photo below, the voltmeter and clock have LED bulbs, the other two gauges have 3W incandescent bulbs.
Like Doug wrote, there are six gauge illumination bulbs. There are also seven warning light bulbs; three each in the tach and speedo, and one in the fuel gauge. If you want to replace these with LEDs as well, make sure the color of the LED bulb is the same as the lens that it will shine through. As an example, you would use a red bulb for the low fuel warning light. This LED bulb works well for the warning lights: SuperbrightLEDs.com WLED-xHP.
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