Porsche 911 / 928 Cruise Control Module 12V date stamped 10/77 VDO #3 C#401. This product data sheet is originally written in English. Porsche 911 / 928 Cruise Control Module 12V date stamped 10/77 VDO #3 C#401… Please pay close attention to all of the pictures. Any flaws in the item will be shown and make sure the part listed is the one you need. NOTE TO ALL OUR VALUED CUSTOMERS. USED Porsche 911 / 928 Cruise Control Module 12V date stamped 10/77 VDO #3 C#401… Genuine Porsche / VDO. 928 617 127 00.