WOW, These dashes look beautiful !!! You're all doing some great work....I've tried to follow different threads over the years on that diode and it's use and have'nt seen any real good answers on what the deal is....It definitely was used on some models and actually one of the pics snoopy posted has a pic of the factory diode...I'm not sure where these pics originated but I saved this one because I thought it was an interesting subject...This is the color version of the one snoopy posted with the highlighted "diode"....