Hello i will firstly assume you mean the A5 chassis skoda octavia (later 2nd shape) if so proceed as follows disconnect battery 12v + terminal first for safety and to avoid faulting dash or airbag cuircuits should you insert ignition key to turn steering etc then pull steering wheel out and down to max adjustment remove dash trims either side of steering wheel (small strip on left and head light switch trim on rightside) then pull out lower dash clock set trim attached to clothcover to reveal two torx screws 1x either side remove these then you will need 2x credit / loyalty card type pieces of plastic insert them one either side at top of clockset just by each top corner and push in until you find to clips that will release the clock set reach behind and release the lever type plug at rear ,remove dash set you will now have to dismantle the plug you have just removed top clips off flip over release end catchs and push out centre then at wire loom end prise the 2x catch open and slide out the inside plug the pulse will be obtained at empty pin position 28 the numbers are visible only at each end corner count carefully we insert the skoda part number000-979-009 which is easily available from the main dealer,if not available you could solder a wire into a long pin type pin and insert and use a glue gun to secure (cowboy!!) reassemble in reverse order and connect battery i am a professional meter installer so you can be assured this is 100% correct
the middle wire on the speedo block on the engine by the gear lever in the engine
install taxi meter on volvo s80
you need to buy a CANBUS INTERFACE
The speed pulse wire on a 2009 octavia is pin number 9 on the multi plug connecter on the back of the speedo cluster , remove plug and all the pins are numbered .
Meter is a result of the periodic effect of pulse/beat in music
remove the stereo with two radio pullers in the side slits on stereo there is a blue and white wire that gives you a pulse
on the back of the stereo . middle plug green wire with white trace
square pulse signal
Bit
both are playing correctly
Taximeters are an electronic piece of equipment that counts the pulses coming from a sensor on the transmission. The signal from the transmission is in the form of a pulse which the meter counts and then determines how far the vehicle has traveled.
It depends on what type of signal the meter needs/ voltage range. The signal would have to intercepted form the transmission sensor, wheel speed sensor or the signal going to the instrument cluster. An alternative is to get a separate GPS based/speed sensor, auto-meter sells one to use for their electronic speedometers due to different transmission, wheel sizes combos available when a car is customized. It might be better/cheaper to due it that way.