hi kiwijochen

i can understand your theory on the speed signal

i have writen down all the readings for you
ON-BOARD MONITOR VERSION
SW LEVEL=42
HW LEVEL=40
DIAG INDEX=31
BUS INDEX=10
ENCODING INDEX=17
SUPPLIER=17

NAVI/GRAFIC
SW LEVEL=30
HW LEVEL=10
DIAG INDEX=04
BUS INDEX=09
ENCODING INDEX=04
SUPPLIER=0103708.21

GPS VERSION

RECIEVER SW VERSION=8.6
RECEIVER SW DATE=23.3.0

SENSOR CHECK

WHEEL SPEED=0
GPS SATELLITE=04
GPS STATUS=SATELLITE CONTRACTED
GYRO=02549
DIRECTION OF TRAVEL=FORWARD

VIDEO MODULE VERSION

SW LEVEL=11
HW LEVEL=04
DIAG INDEX=02
BUS INDEX=11
ENCODING=02
SUPPLIER=09

GPS STATUS

LATITUDE=51*39'33'' N
LONGITUDE=360*02'47''W
ALTITUDE=50M
DATE/TIME=07,05,09 20.25
6-SPEED/HEADING= O.2MLS 111
REC STAT/POS-SRC=POS 3D/6
PDOP/HDOP/UDOP=4.8/2.8./3.9

I hope i have the right info for you
btw i borrowed my friend mk3 unit today and pluged it in
everything was ok he had the 60 update and he had split screen it look wicked
even satnav worked on mine
when i plugged mine in hes it still was doing exactly waht it was doing in my car
also i have some pictures for you too
of the plug that im left with


and this plug it has 1 wire missing



also
i went on that link you sent me to get the updates
sorry im confused i dont knw which one to download
i thought it was the 22.1 one but when i click on it nothing happens
i downloaded the img burn
and what does os cd mean?
im gonna try and figure out how to download the software buy reading other threads but if you can tell me how to do it or try and guide me best as you can it will be very helpfull

thanks very very much for your advice and time
hass