Audi and Porsche contract Bose for the sound system. The decision is usually based on usually industry alliances, not necessarily the cheapest. The German autom

Audi and Porsche contract Bose for the sound system. The decision is usually based on usually industry alliances, not necessarily the cheapest. The German automakers also have a stake in Here Maps, that's why you'll se it on their vehicles. If they don't have a stake they'll usually pick a German company or buy shares in one.