RDS-TMC is not working.| Start 42
I have a start42 which works OK but when I plug in the RDS-TMC it is recognised as connected but no traffic info comes through. I have reset and done a restore of software but nothing happens. I can confirm that the Start 42 is compatible with the TDC-RDS according to the box and web site. I have tried the satnav inside and outside the car but nothing comes up.