HVAC & Door Panels
Hopefully you opted for the 'easy' way to take care of these two - purchasing bulbs from www.superbrightLEDS.com. The bulbs that you need are on this page, remember you need five 12VDC 1-LED Wedge Base Bulbs, and four 74 Wedge Base LED bulbs of your choice. The nice thing about these little bulbs is that they are all ready to go and plug in perfectly where your old bulbs when. If you insert them and they didn't illuminate, just rotate it 180 degrees and try again. If you opted to make your own, you can just slide the LED legs into the bulb holders...put a dab of solder on them to keep them in place.
HVAC
1. If you haven't already, pull the trim panel off. Behind it you will see that the HVAC unit is held on by two 7mm bolts, remove them.
2. This modification can normally be performed without even disconnecting the wiring harnesses, but if you need more room, feel free to do so. At the top you will see two small bulb holders. They come out by twisting.
3. Inside each holder is a tiny #74 bulb. Most of the time they are stuck in there pretty good, and will break when you take them out. It happens a lot - you just need to dig out the glass pieces out of the bulb holder. Either disconnect the battery or remove the bulb holder from the car when you do this so you don't short anything out. You may need to chip away at it with a small screwdriver to clean it all out.
4. Now insert the #74 bulb. Turn the lights on. If it didn't light up, turn the bulb the other way. If it still doesn't light up, check the fuse for the lighting, it may have blown accidently.
5. Twist the bulb holders back into place, reinstall the HVAC's two 7mm bolts, and enjoy. (sorry, not the best pic)
Door Panels
To change the door LED, you only need to remove the small trim piece around the door handle.
1. The trim comes out with two screws, one on the side of the handle, and one right above the knob. Remove those, and then pop the trim piece out. It doesn't need to come out all of the way.
2. The bulb holders are verbatim to the ones in the HVAC. Twist it out, remove the bulb, and insert the new one. Once again you may run into the bulb being stuck good...get all of the pieces out of it.
3. Turn the lights on and observe. If it doesn't light up, turn the new LED bulb around.
4. Reinstall trim piece and screws, and repeat on the other side.