I've had a bit of time to have a look at the wiring behind the cluster and centre console, I'm getting clicking sounds from 2 different locations, I've traced one to what looks like an alarm module, why would that be clicking?? It's a metal box just above the airbag bag module, the 2nd clicking sound needs a bit more investigation but I'm pretty sure it's behind the dash, possibly the flasher relay. Will have a look tomorrow after work