'91 Legacy Speedometer

Just a few days ago I had someone put a new clutch in. When I got the car back the speedometer doesn't work. I am sure if I asked the guy to connect it (or whatever you have to do to make it work) he would, but I was wondering how I could do it myself, is it a simple task? Any help would be appreciated especially a step by step guide :iceslolan

I think theres a connection somewhere on the gearbox housing, i'm only assuming because i dont have my workshop manual with me but if there was clutch work done then i'd look in that area first.

Cheers