FAKRA GPS fitting

Does any one know whether a Skoda dealer is likely to have the kit necessary to shorten a GPS cable? i.e. new FAKRA plug and crimp kit?

Reason for asking is that i have just fitted a COlumbus unit and the GPS puck supplied has about 20 ft of cable on it which I could hide behind the stereo, but it is an excessive amount if cable to have flapping around.

If the dealer is unlikely to have the kit, does any one know of someone in the Hereford area who has the necessary kit and could do this for me?

Thanks.