VIN data is "embargoed" until car official sales dates. The companies already have them in their systems, they just can't do anything with them until the vehicle is officially on sale.
I was thinking I could wire a small toggle switch into the line going to the speaker. Then it could be "disabled" by just flipping the switch, and turned back on if wanted or needed.
If the car detected the open circuit and complained: it would not be hard to figure out the resistance of the...