Changing A/C control module?

I took my car to a mechanic, and he said what was wrong with my front A/C was the A/C control module. He couldn’t get it from Mopar or anywhere else due to a shortage nationwide. I found a brand new one through an online parts dealer and purchased it. So, my question is, I know how to access the A/C control module and I’m trying to save money and replace it myself, do I need to unhook the negative cable under the hood to the battery? I’ve seen a lot of videos, no one says yes or no. That’s the question.