HVAC air conditioner sound damper for external case (vibration control)

My HVAC external unit started to make weird noises because the external case vibrates a lot. Need to fix this ASAP in order to not annoying the neighborhood.

External whaser need to be printed in ASA in order to last long, internal whaser need to be printed in TPU, if you don't have TPU it's ok if you use PETG, but it's intended to use TPU