If it's a ticking noise coming from under the centre console, and can be felt when you have your hand on the hand brake, then it is coming from a water valve in the cooling system that is bolted to the transmission tunnel.

Nothing to worry about - this is normal. Doesn't do it all the time, and is dependent on temperatures and air-con settings etc.

Just turn the radio up, or drive faster.

My trusty lambo tech at my dealer is looking at remounting the valve so as to "isolate" the noise from the transmission tunnel which seems to amplify it.