Check the listing for details. Directed Electronics DSM550 SmartStart Pro 4G LTE GPS Module. Condition: New. Listed at 169.99 USD. DSM550 Directed SmartStart GPS Module w/ 4G LTEReady, set, done! The all-new Directed SmartStart Pro is the fastest connected car solution available. Optimized for use with Directed’s groundbreaking DS4 platform, SmartStart Pro delivers scorching speed with 4G LTE connectivity and future-proof design to ensure support for new features as they are developed4G LTE technology provides blazing fast response time throughout North America. 3G backup ensures the most robust coverage possibleMuliple Vehicle SupportOptimized for use with DS4/DS4+ and other Directed digital systems & fully compatible with most other Directed systemsNew simplified one-piece wiring harness for faster, cleaner installsModule is plug-for-plug compatible with existing installationsActivate on Secure or GPS plans with 1 or 3 year optionsRequires v5.0 or newer Directed SmartStart appRequires remote start already installed compatible with smartstart module