Irritable rattle.

Hi guys, hope someone can help (I’ve also posted thi thread on the newbie forum.)

Had my 2010 Prius for just over a week and I’m trying to track down a irritable rattle when going over minor bumps in the road.
It’s coming from drivers side top dash area “I think” (right hand drive, Uk) but only on the move and only with the steering is pointing straight ahead, when cornering it doesn’t rattle!

I’ve tightened the clamp bolt a bit more on the column but that made no difference.
It does sound like It’s in that area though and only when going straight, so must be steering/suspension related.
Anyone have any ideas ?
All the best, Tony....
Ps. Does the strut have a top bearing and would it rattle if worn?