Hello, Mr. Kilmer and friends!

I have a 04 Acura TL, automatic, 215k miles. I recently brought about 6-10 months ago here in Atlanta. It looks like the vehicle was in the DMV area before ending up here. I have replaced the shocks, motor mounts, installed a bluetooth and a few other things with the help of my dad. 

I have noticed for awhile a burning smell that comes from the passenger side of the vehicle under the hood. It has gotten stronger and only happens when the AC/heater is running. The best way I can describe the smell is a oil or rubber burning smell. It's starting to come into the cabin more. I don't run my heater alot and keep my controls around 65 to defog my windows. I am not sure what the exact cause is but it would help if I need to just buy a new compressor or refill the coolant/freon. I don't believe there could be trash there but I am open to any ideas.

Thank you.