connecting gear indicator help

[Val]

Hi All,

I bought for £18 this gear indicator: http://www.ebay.co.uk/itm/121325993344?_...EBIDX%3AIT

I do have PDM60 so not problem for connecting the ground and the + power.

Any idea were in the connection box I can get connection to the:

1. Tacho
2. Speed
3. Neutral

There is white 3 wires connector speedo connector there do you know which wire is for what?

thanks

cheers
Val