Peter Vercauteren

Hello, my name is Peter. I live in Belgium. I have imported a jdm Impreza wrx sports wagon from Japan (bugeye). Build in 2001/2002. The car is on its way by ship and will arrive shortly. In Belgium a rear fog light is obligated so I bought a Oem rear fog light switch. I noticed that this switch only gives a pulse and has no mechanical on/off position. Can somebody tell me how I should wire this switch? Would the instrument cluster have a light for the rear fog lights like in the European version? (And that I can use) every help is welcome.
its a rhd car since it's from Japan but I guess you all have rhd cars in U.K. 😃
Thanks!
Peter