orange spv m700 and external gps antenna

[Guest crazydoc]

Hi

Recently upgraded phone to spv m700. Have downloaded TOMTOM 6 and has been picking up satellites no problems in hubbies car. Not so well in mine as it has an athermic(heat reflective windscreen). I know I need an external GPS antenna (as per instruction booklet) but it doesn't say what sort of connector is needed and I can't tell what type of connection is on the back of the phone.

Does anyone have any ideas?? ;) please