So, based on what others are saying the Homelink buttons are powered all the time. Is your radar detector powered all the time and you have to turn it on and off each time you get in/out of your car?
For the first week driving my FL5 I thought the Bose sound system sounded so bad that something had to be wrong with it - like a set of speakers was not hooked up. Changing the source did not matter (satellite, Carplay, even podcasts). I endlessly adjusted the treble, mid, and base settings...