Who'd have thought we'd be happy to see an unassuming black box? Delphi and Verizon managed to whet our interest with their Vehicle Diagnostics kit and service at CES, and our curiosity is renewed now that the monitoring combo is available for drivers. The finished product costs a fairly steep $250 for the Delphi adapter, although it does deliver two years of free service and costs a contract-free $5 per month afterwards. Shelling out brings the promised remote trouble