Head unit function question
 

I'm not sure if I'm simply not seeing the solution, but here's the problem:

I don't listen to radio - Sirius or otherwise. When I get in the car but don't have Android Auto connected yet, the head unit generally decides I must want to listen to Sirius XM. Except my subscription has run out and will never be extended. So it's just that worse-than-silence advertisement channel.

In my wife's Honda, it doesn't make a peep until we plug a phone in.

Is this a difference in manufacturer or is there a "don't speak until spoken to" kind of setting that I'm missing?

EDIT: and yes, one work-around is to always connect the phone before I start the car, but that's not the functionality I want to have. If my wife and I are both going somewhere I back the car out of the garage before she gets in, and she runs the infotainment from her phone.

Try changing it from Sirius XM to radio without the phone plugged in. Then turn the car off and back on - if it's still on radio then you know it'll remember the last source you used (without the phone being plugged in).
Then the trick is to leave it on a radio frequency that's not being used in your area, so it's effectively silent when you turn the car on. This is what I've had to do in my modern Subarus unfortunately. Drives me crazy in my wife's Outback.
If I had my car I'd be able to confirm this for you, but I'm still waiting on it.

That’s how my head unit functions. It starts on whatever the last input was (except CarPlay/Android Auto).

Thanks, I'll give that a try.

Or if you prefer, you can just use Sirius XM channel zero. It 's an unused Sirius XM channel.