I've searched around TI and other forums and found a few topics out there pertaining the ashtray and cig lighter MOD, but have not really found a complete write up nor updated pics.
This thread I'm going to show you the approach I took when doing my climate control LEDs. This is specifically for swapping the Ashtray and cigarette lighter from OEM bulbs to 5mm LEDs.
Again let me stress that I did this MOD with what I had to work with. It may be different from how you would do yours depending on your skill level or materials/tools you have. It might be a lot of work to some, but it's the fun for us that likes to DIY.
Tools and materials needed:
2 5mm LEDs (Color of your choice)
2 470 ohm resistors
Soldering iron
Electrical tape
Philips screwdriver
Dremel
Wire stripper
4 male and 4 female spade connector
Needle nose pliers



