A total of 5 Grounding Cables were made and installed.

Cables were installed in following locations:
1. Right Fender to Engine
2. Engine to Throttle Body
3. Engine to Transmission
4. Transmission to Negative Battery Terminal
5. Negative Battery Terminal to Left Fender

An excellent write-up by MCPaudiTT, including the making and tinning of cables, can be found here - http://public.fotki.com/mcphill/audi_stuff/interior_non-lighting/grounding_mod/

Parts can be found here at Parts Express.com - http://www.partsexpress.com/pe/pshowdetl.cfm?&DID=7&Partnumber=263-645