I have successfully replaced all of the incandescent bulbs in my switches using LED's. I was able to resistor and mount high intensity green LED's in the OEM bulb holder with only minor modifications. The benefit of using LED's are too many to list, but the fact that they have a 10+ year service life was reason enough for me to do this. Anyhow, I am tempted to sell kits with the necessary components to do this mod at minimal cost. I will also offer different color LED's, I personally am going to blue and red as to mimic the cool VW dashes in the newer cars. I am also working on replacement radio, shifter, and dash LED’s. I just wanted to get a feel for whom, if anyone would be interested in a product such as this. I estimate that the “switch” kit will sell for around $30.00 and contain enough pre-resistored green LED’s, and other supplies to relamp all switches in the 850 series cars. At the moment the labor and bulb sockets are up to you to supply. I am seeking the vendor of the OEM socket to see if I can get the pieces at a reasonable price, but for now I have to recycle. The job took me about 2 hours to complete once I had the recipe in hand. I can get the following colors of LED dies: Blue, red, cool white, yellow, brilliant green, lime green, orange, and sadly enough IR. I am open to suggestion and ideas, so please let me know. Thanks for your time. Prospero.