Viper – DS4VB DS4+ Remote Start System with Tilt Switch and Geek Squad® Installation $299 was $460 at Bestbuy

Control your vehicle remotely with this Viper DS4+ remote start system. The Bluetooth connectivity of the DS4 module provides wireless programming and control with a smartphone, and it includes a temperature sensor to detect when the engine heats up sufficiently. This upgradeable Viper DS4+ remote start system works with your OEM remote thanks to its 3x lock start support.