Electronics
Some good news if you want to retrofit your car with Apple CarPlay - OEM Porsche solution is here:
Porsche Classic Communication Management systems - Porsche AG
Apparently these only fit classic cars:
986 (1997-2002)
996 (1998-2005)
914 (1970-1976),
911 F (1965-1973),
911 G (1974-1989),
964...