KPH to MPH converter chip wiring

[Abbot]

Hi all

 

I'm trying to sort out a MPH to KPH chip on an Alphard but don't have the original wiring instructions. For the chip in the photo does the yellow wire attach to the wires coming from the loom, or the wire going into the speedo? 

 

Many thanks 

[Picasso]

Simon where is this chip located because that looks like the Iva fog light switch the Speedo chip is behind the Speedo clock and the chip is called a ckun09 I will email you full fitting instructions tomorrow