If your vehicle lacks a backup-warning system, there’s now a way to acquire one. The FenV1 Smart Wireless Parking Sensor from FenSens provides backup assistance for literally any make, model, or year of car, truck or van. The unit consists of a Bluetooth-enabled license-plate bracket with sensors that can detect objects up to 10 feet away. The visual parking cues are provided by a smart phone app (Android or iOS/Siri-compatible) that also sounds a warning as you approach objects in your path. A mount for attaching your phone to your vehicle’s air vent is also included. Order the FenV1 for $150 (plus $15 for the optional TAP QuickLaunch button) from www.amazon.com or Best Buy stores, or directly from www.fensens.com.