removed negetive cable from battery post to clean corrosion. on 2006 Jaguar X-Type

Upon removal of negetive battery cable to clean post and clamp, a small connector appeared out of nowhere. It sits at the end two green wires and has a small green horeshoe shape on the connection face. I've looked for a connection site but I am stumped. What is it and where the heck does it connect to something?

by in Naples, FL on April 03, 2011
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1 answer
ANSWER by , May 15, 2015
Look on battery case/box. On the upper side of case, mid ways, the side towards driver.