Thieves amplify a vehicle's radio signal to access and copy the key fob signal to steal a vehicle. Here's how to block the signal.

The Mazda CX-90 is the latest model with remote start and stop that used to be on a key fob, but has now gone the way of in-app subscriptions.

To the consternation of unaware owners, Toyota's remote start key fob functionality requires a paid $8 per month subscription service.