medion 9500 plug in gps

My Medion satnav has been giving me problems, I sent it back to Medion and they assure me nothing is wrong with it. The only thing I can think of is that it my be the actual plug in arial, if it is that do I need to buy an actual Medion one or is there any others out there that can be used with the Medion ?
Thanks in anticipation
Fniff

[Charlie]

Welcome to our forums.
You will need to know what connector type is has then you can get one similar instead of getting the Medion model.