Battery Draw while car is off at 3.24

I have a 2007 Saab 95 wagon… For about 6 months at random about once a month my car has been dead. After calling AAA and they told me there is a draw from the battery at apx 3.24 which is should be much lower. 3 weeks ago I took it to the mechanic he kept it for 6 days and played the guess and check game with the wiring and fuses… Eventually he ended up swapping out my battery for a new one… I had AAA come back and re test and the car is still reading 3.24. Any suggestions on what this could be.

~~I know it is not the alternator or the actual battery

My next guess is to just unplug the alarm (which I don’t use)

Helppp!!! I love my car and don’t want to get rid of it.