Has anyone been able to source one of these? Or knows a suitable alternative? Another post on the forum shows 2 kinds of bulb socket and I (unfortunately) have the one that is known to be problematic. Are the parts interchangeable and, if so, what is is the part # of the "better" one. My part # is 5174703AA and it looks like it has been arcing and one of the contacts has burned through and is now broken off. Can the contact be "built-up" with solder to re-establish the connection??