Anthony, Warren just made a great post on how to use a multitester on the Beru connectors...it's probably on page 5 or 6 by now...but by doing this, you might save a few bucks, buy the wire only? Gee, with a few "pretty pleases", he might even tell us how to connect raw plug wire to the factory connecors?
Edit: Here's the string with Warren's post on how to test...
Beru connectors, are VW the same?