Now I am starting to get frustrated.Homelink can be a pain. Best to do the same thing in the morning and it will work. Seems like this for me. Make sure you clear out all saved codes. I think you need to hold down 1 and 3 until the lights blink. Then hit your lean button and hold down 1.
On the sound issues, if the reboot doesn’t work, maybe your car needs a software update?
I went for a drive because I haven't driven it at night yet. Pandora via CP was fine, volume works. Finally....I always drive with Waze on, even going to the grocery store. Never know where a cop is hiding out. I click on Waze on the console and - back to no volume controls. Gah. Maybe when I get the CarPlayAir, this self resolves. I hope so, anyway.
Homelink - yeah, did that. Most are the same: hold down 1 and 3, wait until it flashes quickly, and that clears it. Then hold down button you want to program and the remote at the same time. Light flashes 3-4 times slowly, then rapidly as it is supposed to, but garage door doesn't respond.
My software version is 16.50.50 - I looked for ways to update it on MTC+, but didn't see anything and reading through older posts here it looks like something that is done at the dealership. Fun.