Since my dealer replaced various parts of the AC system 2 years ago, I hear an intermittent "squeak" coming from the dash when driving over rough roads and roads with prominent expansion strips. If I push forward on the top edge of the dash/cowl above the gearshift, or if I push upward on the bottom of the dash in front of the gearshift, the squeaking stops. I know this is damned hard to diagnose with so little info, but I wondered if anyone has expert knowledge on the way the 850 dash/cowl is held in place, and what might be the cause and remedy for this. Aside from this squeak, this car is still a pleasure to own. But the squeak gets tiresome. Rick