I have a TNS510 navigation system on my car, which has an RDS-TMC traffic information feature. I'm noticing that the TMC button on the main screen is not turning 'green', which means that the system is not activated, although I do notice traffic-jam icons on the road maps. TMC FM radio channels are set properly. Any idea what could solve this ? Where can I find firmware info on the TNS510 ? Want to check if the latesrt firmware is installed. SDcard with map is fine. Thanks, V.
