A/V systems are $2000 computers now. There is no separate speaker unless you’re going to clip your car stereo speakers
Than 2 minutes on how to manipulate the switch in a way so that it detects a press every time you start your car.
Someone who worked on design for a previous iteration of this said that their company deliberately routed the ‘beep over a certain speed’ signal via a wire between two modules for precisely this rrason.
So instead of clipping a wire you plug in a Bluetooth OBD interface and flip a bit in the car’s memory that the engineers conveniently forgot to remove which disables the beeps…