Here is a list of parts that are available as Porsche and VW. I use this list for two reasons:
1.) Some parts are NLA from Porsche but are available from VW dealers
2.) In most cases you will find that the parts are cheaper when purchased from VW dealers vs. Porsche dealers.
Most parts are easy to spot based on the 021., 022. or 039. prefix. Let me know if anyone knows of other parts that are interchangeable.
I had to take the image quality down to Gif to get it to fit. If anyone know how to convert it to better quality, I can email them the complete Excel file.