New Gadget Makes Your Dumb Car Smart for $99

Tom's GuideNew Gadget Makes Your Dumb Car Smart for $99Tom's GuideAndroid Auto and Apple CarPlay offer the latest in automotive infotainment, but there's a lot of things they can't do, such as monitor your engine or unlock your door. On top of that, you have to buy a whole new car (or at the very least, a $700 head ...