Guys,
I too had difficulty seeing the gauges on the dash while driving at night. I found a potential solution by buying a map light that plugs into the cigarette lighter. I also ordered a red bulb to replace the clear bulb that comes with the unit.
I used it last weekend and found that the plug tends to swivel in the lighter and causes the light to drop downward toward the bottom of the dash. I solved this by adjusting the light to the full downward position and then swiveling the head forward illuminating the entire dash. Worked out just fine that way. With the red bulb, it did not affect my ability to see the road.
The map light is made by Sho Me products in Cassville, Mo. and I purchased mine for $24.95 from OMB Express (police supply) in Lenexa, Ks. The red bulb was extra.
http://www.ombexpress.com/product~sku~VE052.asp
Hope that helps.
Larry P.