For 2003-2006 GN trucks and SUV's you can easily replaced the bulbs in the SW switches. They are soldered in and need to be soldered back. LEDs are your best bet as the OE bulbs have a blue rubber cap over them which is a filter for the incandescent bulbs. The blue caps usually harden and break when trying to reuse them. All of the aftermarket caps are pretty much garbage also. I bought DIY LED kits from eBay with the good cube LEDs that spread the light evenly with no bright spots. Kits come with the cube LEDs, instructions and the polarity diagram. An hour or 2 and you are done. https://www.ebay.com/str/gmgaugerepair/LED-Steering-Wheel-Kits/_i.html?_storecat=10570695017
Forgot to mention that they have 4 color options also.