Plug & Play 2-Way Remote Start Kit for Sierra & Silverado 2003-2007 Classic Body Style - This Kit Offers The Easiest Installation Available On The Market! REMOTE START PACKAGE OVERVIEW - - This is the easiest kit you will ever install! This is a complete prewired remote starter kit for GM trucks. The kit includes a Crimestopper RS7 remote starter, bypass module, T-harness to eliminate all wire splicing, and all parts required for installation. Compatible with automatic transmission vehicles only. REMOTE START FEATURES - The Crimestopper RS7 system is a 2-Way FM / FM paging remote starting system with 3000 ft. range that uses LCD graphics and audible tones to give you confirmation that your vehicle has started and is running. Great for people whose cars are parked out of the line of sight. Each kit includes one LCD remote, a cigarette lighter charger for the remote and an additional conventional -sidekick- remote. This package is a complete 2-way remote start and keyless entry kit for GMC Sierra & Chevrolet Silverado 2003-2007 Classic Body Style. The kit features the Crimestopper RS7 remote start, INTSL DATA & Keyless Bypass Module, and custom T harnesses (pre-wired) so the kit only requires you to make 1 connection to ground, the rest is plug and play. Includes detailed instruction sheet to assist with the AVAILABLE OPTION (at additional cost) - Smartphone Interface in YOUR vehicle. PLUG & PLAY INSTALLATION TYPE - This kit is a true Plug & Play kit. The wiring T-Harness was designed to eliminate the need for the wiring connections that typical systems require. The installation of this product will still require the removal of your steering column cover to access the connection points. However the connections are simple plugins. MPC TECHNICAL SUPPORT - A link will be provided to download MPC's exclusive copyrighted step-by-step installation tip sheet made by MPC's professional technicians to help you through the installation process. In addition, your purchase includes technical support. Support tickets can be submitted 24/7 and are answered in the order received, Monday through Friday between 9am to 5pm Arizona time.