Vesijunu
Forget "radioenable, 1". It is not necessary.
About "A5_SW_TMC", you need to create the key in the registry (or edit it, if "SW_TMC" exist). I use a script
In my gps I use the line:
RegWriteDWord HKLM, Drivers\BuiltIn\SW_TMC, Protocol, 1
In yours gps it will be:
RegWriteDWord HKLM, Drivers\BuiltIn\A5_SW_TMC, Protocol, 1
I you use Regedit.exe to edit the registry, be careful when you do this.
Good Luck!