Slows needle fluctuations in fuel gauge. Zims PN ZIM.201.000.XX - price as of 7/29/08 $19.95. Phone 800-356-2964. Substitute appropriate crimp-on connectors for the Porsche ones shown in this picture. Center connection (double wire) attaches to wire from Tank sender. Right wire attaches to 'T' terminal where Tank wire was formerly attached. Brown Ground wire is in addition to the ground wire from the gauge body, not instead of it.