Drives my wife nuts, but I can drive halfway across the country without using the radio in the car/truck. I listen to engine noise, tire noise, etc., and it lets me know how the vehicle is doing on the trip. I wanna know if I run over a nail or screw or whathaveyou, and I want to know how the engine is doing.
Granted, it's not too important, really, as our vehicles are newer and very well maintained, but it makes me feel better. On our last trip, in fact, I was able to figure out that I'd ran over a nail and got it in my tire, and get it fixed before it became an issue (the tickticktick gave it away, and I caught it inside of 50 yards).
The wife actually drove down the highway with a shredded tire she didn't know about because her radio was too flippin' loud, but that was when we were first married, and I've tried to cure her of that.
