I've swapped to a TNS600 from TNS300. I've bought a gps antenna off ebay, but seems very slow and not working properly.
Does anyone know where to get a better gps antenna or locate the one thats used on TNS300?
I've managed to locate the gps connector (plugged into dvd player under drivers seat) and rerouted back to the head unit. Unfortunately it's still the same! The old turn by turn signal was always good and the compass was always correct. Any ideas why? is there a difference? The dvd map in the tns600 is a 05/06 disk.