Yes, there is TMC folder in my Content. This Primo version worked on my former Mio C520 which has GNS TMC receiver (Of course I changed the relevant texts in the sys.txt because of new TMC receiver). But, this Becker has Avanteq made TMC receiver.
Do you really think that the below texts are OK for Avanteq receiver?
[tmc]
source="gnsport"
version=-1
enable_igo_provider=1
tuner_alg_search_force_on=1
port="COM,1"
baud=38400
tuner_alg_search_force_on=1
tuner_alg_search_timeout=20000
tuneralg_rds_packet_timeout=4000
tuneralg_8a_packet_timeout=6000
tuneralg_3a_packet_timeout=8000
ignore_suspend=1
ignore_resume=1