Right, for anyone interested my replacement switch panel from ebay came this morning and it did indeed only take me 5 minutes to fit, now I can switch the city steering on and off correctly, havent driven it yet (have a traspped nerve in shoulder that doesn't like gear change movements) but steering definately changes with and without it on, in fact its quite a difference!
Thanks for all the help from Fiat folks here, I'll be sure to stick around
ps just another quick one, the previous and only owner has fitted a JVC head unit and surround but the rear speakers do not work (checked with fader) had the unit out but cannot see a problem, any ideas or should I stick this in the ICE section?