I'm an old curmudgeon with hand crank windows on an old GMC truck. Blue-tooth equates to stained teeth in my world. My wife is the opposite...latest tech find and she's on it. She recently bought a new car, with all the latest computer bling. I went to back it out of the garage for her when her "phone" received a call over the monitor screen and speakers. Scared the beejezus out of me. Tech is tacky too me