Tempted to save money by DIYing a new key fob or smart key for your car? It could save you hundreds.

In a world in which new cars now cost upward of $50,000 on average, annual maintenance bills are creeping up to four figures, and such outlays don't seem to be getting cheaper any time soon, a ...

Look in your pocket, purse, bag, or junk drawer, and chances are you’ll find a key fob. The basic ones lock and unlock your car’s doors. The fanciest do much more. But no matter which kind you have, ...