Vehicle compatibility: GM & Chevy (2003-2006) vehicles with key-to-start ignition, Gas/Diesel. Vehicle requirements: For Standard key ignition ONLY (not for push-to-start). SPECIAL NOTES - Compatible with automatic transmission vehicles only. Factory remote required. Some vehicle disassembly may be required; see installation guide for details. Windows PC or Mac may be required to complete installation. DIY remote start kit: Add remote start functionality to your vehicle for a fraction of the cost. Enjoy a comfortable driving experience from the start by pre-heating and defrosting your windshield in the winter or cooling down your vehicle before entering in the summer. EASY PLUG-IN INSTALLATION - Utilizes a plug-in T-harness that eliminates manual wire connections. Installation is simple and includes plug-and-play connections. We supply detailed instructions with connector locations for a smooth install. Adding optional features may require extra wiring. Someone with basic 12-volt electronics experience can typically install this kit successfully. What's included: Package includes RF antenna with (2) five-button 2-Way LCD remotes (6,000 ft. range), plug-in remote start interface, and T-Harness. Preconfigured with the correct setup for your vehicle during installation. All required components are included. NOTE: Automatic Transmission ONLY.null