While looking online for a turn signal switch, I came across a spreadsheet that had a list of parts that were interchangeable between VW and Porshe for parts that may not be available from Porsche but are available from VW and may be cheaper/easier to acquire. I thought I would share and maybe we could build on the list. I did a search and did not see this anywhere else but my search skills are pretty weak.
I had to copy the link because I could not figure out how to insert an Excel Spreadsheet.
Porsche 914 to VW Interchangeable parts