Fog Light Relay Location??

  Hi. yes I'm a newbbie!

  I have recently purchased my 5 series 520i (E34xM50) July 91 Model

  I am in the process of fitting Driving/Fog lights and though asking advice on other forums have had to do the Donkey work myself. so for the benefit of others contemplating fitting Driving/Fog Lights to their 520i  I can say Yes1 the wires are already in situ (taped back in each corner of engine comp.) colours Yellow/Red and Brown.the switch in the Dash must be replaced with a 2 way switch the wiring is also inplace for front Driving/Fog lights.

  My question is about the Relay as I can't find any Information about the Distribution Board. Is the Fog Light Relay already inplace? can anyone tell me the location for this relay? or better still the locations of all the relays on the Distribution Board for troubleshooting at a later date. I have checked the fuses and these are also inplace so I think all I have to do next is plug in Relay