Running the heater makes the whole car shake

[tommy986]

I'm guessing motor mount.

[Pat]

Thanks for the responses, guys. The motor mount was replaced a few months ago. It is definitely related to the compressor. I keep the HVAC on while turning on and off the compressor. It only shakes when the compressor is on.
I'm guessing the compressor is just loose or something. Where is that? Is that easy to get to?

[tommy986]

remove the panel behind the seats, then you can observe what is happening.