Yes. I have 2 Dometic Penguins. Thats what started all of this. I installed the rear one and it was a noisy as the first one. So I took both off and lined them with Dynamat and installed a 3/4" thick mounting foam spacer on bottom of ac. That helped with vibration and compressor noise but air noise inside was still intolerable. So I built the duct work and air boxes. The Coleman that can on this AS new was fine, even in Arizona summer, but these Penguins are not what they should be these days. Bought both new. Factory and Dealer say they are normal. Maybe. But still poor by comparison. If you want the drip pan, you're stuck.