An Assortment of W124 Electrical Issues:

[brandob9]

I just picked up an '86 300E with a few issues. All of them at this point are electrical in nature. Automotive electrons and I tend not to be great with each other, but I do know that the fuses are good.

• Right Side Brake lights and running lights. The turn signals and reverse lights work, but not the others. Hmm... Bad input?
  
  Sunroof: The motor draws enough power through the switch to dim the headlights. Where are common places for them to jam? If I can't sort this one, I'll just silicone the thing in place to kill the wind noise. The PO also yanked the sunroof liner, causing me to think of asking a redneck to install a pop-up glass piece.
  
  Lastly - the cluster lights "just went dead" according to the PO. Where do I start?
  

Thanks for your responses!