Speed impulse cruise control WAECO MS-50

[AUDIQS]

its driving me mad having to install a retro cruise control because my car is pre can-bus .
the wiring loom date is 1998 on a 'V' reg 1999 registered 12months later
A6 AVANT 1.8T .
WHAT I WOULD LIKE TO KNOW IS THE WIRE COLOURS OR HOW I CAN CONNECT THIS WAECO MS-50 CRUISE CONTROL UP TO THE EXSISTING SPEED SENSOR PEOPLE HAVE SAID BROWN/RED ON THE PURPLE PLUG ON SPEEDO BUT NOTHING HAPPENS.
IVE TAKEN VACUME FROM THE DUMP VALVE UP BY THE INLET MANIFOLD IF THIS IS CORRECT , PLEASE ADVISE IF NOT AND WHERE I MIGHT GET CORRECT VACUME.
IVE TAKEN THROTLE CONTROL FROM THE PEDAL WHICH WAS A PAIN TO MOUNT BUT DID IT.
WHAT AM I DOING WRONG?
PLEASE HELP ANY ONE

[Peter D]

Yes the wire is Brown and Red on T32/Pin28.
However the Original fit unit takes the processed speed signal from the dash to the Cruise Control Unit pin T32/2 White and Blue. Your MS50 details a speed sensor that comes with the package ? You have not mentioned the brake and clutch switch and have you test that that line is grounded when feet off. Regards Peter

[AUDIQS]

have fitted extra switchs for the clutch and brake . what colour is the T32 terminal? please . and can i access the terminal down in the pass footwell as i have a wire for the sensor awaiting to connect to a wire . i have seen a pink block with grey/black on pin 2 brown/red on pin 8 if this may help .
on the pedal switchs you mentioned being grounded on the waeco diagram it seems to take a positive feed to turn off the unit.
thank you for any help.
if you need more info please ask many thanks.
all i need now is a big asprin to get rid of the head ach this has given me.

[Peter D]

T32 is Blue the only other connector is a 10 pin black connector Pin 9 in the Plenum Chamber ECU/electronics box.

[AUDIQS]

T32 is Blue the only other connector is a 10 pin black connector Pin 9 in the Plenum Chamber ECU/electronics box.

the chamber is that the one thats in the floor on the pass side in the black sealed box yes.
if you have the tech data would the VIN number help in any way.

[Peter D]

No it is the large plastic electronics box at the rear left side under the Plenum cover and next to the brake servo. I have your drawings up so the VIN is not needed. Regards Peter

[AUDIQS]

T32 is Blue the only other connector is a 10 pin black connector Pin 9 in the Plenum Chamber ECU/electronics box.

Hi pin 9 is blue/brown and pin 10 is brown/red on the black plug if this maches up with your drawings for "4B"model AEB ENGINE yes.
thank you for your info.

[Peter D]

According to the drawings it's br/ro form the sensor to T10 Pin 9 and br/ro when leaving and going to the dash panel. PM me and I'll send you the diagram. Regards Peter

[AUDIQS]

Yes the wire is Brown and Red on T32/Pin28.
However the Original fit unit takes the processed speed signal from the dash to the Cruise Control Unit pin T32/2 White and Blue. Your MS50 details a speed sensor that comes with the package ? You have not mentioned the brake and clutch switch and have you test that that line is grounded when feet off. Regards Peter

HI THANK YOU FOR YOU REPLY.
have fitted extra switchs for the clutch and brake . what colour is the T32 terminal? please . and can i access the terminal down in the pass footwell as i have a wire for the sensor awaiting to connect to a wire . i have seen a pink block with grey/black on pin 2 brown/red on pin 8 if this may help .
on the pedal switchs you mentioned being grounded on the waeco diagram it seems to take a positive feed to turn off the unit.
thank you for any help.
if you need more info please ask many thanks.
all i need now is a big asprin to get rid of the head ach this has given me.