Hi, I have an 87 300SDL and although I have read quite a few posts about upgrading the instrument cluster lighting to LEDs, I still need help. I bought all the LEDs I need, I install them and they don't work. I insert the old incandescent bulb and it works. What am I missing? I know it's got to be something stupid. I also saw some cool self powered dials on a youtube video W126 SEC LED Dial Faces - YouTube . I wrote the guy who uploaded it and asked where he got them but he has not replied. And the last one, does anyone know about any after market clusters for the w126 that are more updated than the OEM culster? Thanks.