I followed auiotour's howto which is the best thing out there for this stuff (Llane, please put it in your sig!). Since my install, the LED behind the gas gauge has gone out, but I think that's just because it was shaken loose from its holder. The SVT gauges are just too dim if you replace all five bulbs with LEDs, so I would suggest trying to mix one regular bulb in there to achieve the best results. That, or do what I'm doing and get a set of indiglos.