[Ryu34]

Are there any tricks or modifications that can be done shut off the car completely when I park by default?

I park in my garage I leave the car unlocked and I leave the keys in it.

I'll be walking around my house on a Bluetooth call and randomly the call jumps to my car. Or if I'm getting ready to leave and my kids open the door or i open the trunk to put something in and the call jumps to the car.

I have to go out to the car and press and hold the power button on the radio.

This is super annoying, Yes I know I can press and hold it each and every time I get out but I forget and it's also annoying.

Is there any way to set the car to permanently turn the electronics off when you turn the car off without locking it and taking the key?

[Yeoman]

You can't hang the keys on a hook next to the garage door?

[Oz M5]

Take the key into the house.

Problem solved.

I don't know of any vehicle that fully shuts down when the key is still close by.