1998 Boxster turn signal bulb holder replacement
 

Hi all,
any ideas on how to find and buy a used front headlight turn signal bulb holder without buying the complete headlight assembly? any parts shops or "junkyards" that may carry such used items for Porsche?
My 98 Boxster has an intermittent left front turn signal (all other corners work) and I changed the bulb, but the bulb holder had been 'worked on" and though it shows continuity , it may be the culprit. It can be removed and a new one snapped in, but Porsche does not sell them as a single part.

Any leads would be helpful.
Regards, bob