Blaupunkt Philadelphia 835 sys-file setup

I have sucessfully installed iGo8 on my Blaupunkt Wolfsburg (same as Philadelphia).

I renamed the folder to RTNAVI and the exe file to Mobilenavigator.exe

Application starts fine. But does not find the GPS signal. I suspect that I am missing some parameters for GPS and TMC. Example file would be great!

Here is my current config:

[interface]
skin="ui_igo8"
resolution_dir="800_480"
maxzoom2d="6000000"

[rawdisplay]
class="landscape"
screen_x="800"
screen_y="480"
highres="0"

[debug]
skip_eula="1"
enable_roadshadow="1"
enable_roadsign="1"
supress_straight="0"
supress_highway_enter="0"
enable_buildings="1"
minimize_button="1"

[3d_config]
roadsign_lines_per_screen="12"
disable_roadsign_navigation_mode="1"

[map]
3d_scale_carmodel="1"
3dcarsizemin="3000"
3dcarsizemax="8000"
3dcarsizemul="18000"
3d_max_tiltlevel="9000"

[sound]
ding="0"
queue_length="200"
sound_q_length="200"
dynamic_volume_type="0"

[tts]
tts_logics="3"
priority="HIGH"
tts_buffer="131072"
announce_exit_directions="1"
always_say_road_names="3"
announce_street_name="1"
skip_exit_numbers="2"

[feature]
text_guidance="1"

[screen]
menu_animation="1"

[navigation]
gps_pos_to_road="1"

[smartzoom]
overview="0"

[gps]
baud="57600"
port="1"
;source="nmea"
;delay="100"
;delay_after_pos_valid="1000"
;delay_after_pos_invalid="1"
disable_advanced="0"
set_messages="0"