I get the same noise now with 76k miles on my car. I believe it's the accessory belt tensioner that causes this. I haven't had the time to go out when it is cold and listen for the sound. Gonna need a long screwdriver or similar to find the tick.
It's either the accessory belt tensioner (idler pulley) or the timing belt tensioner but I am somewhat sure it's the idler pulley.
It's either the accessory belt tensioner (idler pulley) or the timing belt tensioner but I am somewhat sure it's the idler pulley.