> But there's no way to make it start with the stereo off. If the car is on, the stereo is on. The only way to turn the audio off is to twist the volume knob all the way down to zero before you turn off the car.
I have a 2016 Hyundai Tucson with a similar, but slightly different feature.
Turning the volume all the way down before switching off the engine does not effect the startup volume. When the engine starts, the radio comes back on at a preset, but reasonable, volume.
However, if I turn the entire screen off, by pushing the volume knob in until it clicks, before stopping the engine, then on start-up the radio will be off, but so will the entire screen, which also controls navigation, bluetooth connectivity and the reversing camera.
My first action after starting my car is 90% of the time to turn the volume down on the radio.
However, I must say that's really the only niggle I have with the Tucson. Everything else I'm pretty pleased with. While it does have a touch screen, I hardly use it, as everything can be controlled with tactile knobs and buttons. The touchscreen is used most when stationary and inputting a new destination address for navigation.
However, if I turn the entire screen off, by pushing the volume knob in until it clicks, before stopping the engine, then on start-up the radio will be off, but so will the entire screen, which also controls navigation, bluetooth connectivity and the reversing camera.
My Subaru has the same behavior, minus the backup camera remaining off. In reverse, the screen turns on and displays the image from the backup camera. It turns off again once you switch into drive. It's certainly a solution to the problem I described, but it's obviously not ideal for all the reasons you've enumerated. Turning off Bluetooth, navigation, and (in my case) Android Auto is certainly a drastic way of dealing with this radio behavior.
By outsourcing to the lowest bidder and then putting the thumbscrews on to push the price down even more. Everything in these cheap mass market cars is made as cheaply (and thus half-assedly) as humanly possible.
I mean, the real issue is that it starts at some preset volume that's almost invariably too high. if turned on at something more reasonable I'd get less annoyed by it