Crimestopper RS4-G4 Cool Start 1-Way Remote Start System Two 5-button Transmitters With Brushed Aluminum Accents Keyless Entry Trunk Pop 2-vehicle Operation Universal on all types of vehicles, especially those with larger ignition wires with high current ignition switches; manual transmission operation, dome light supervision, horn honk output; diesel engine compatible 2) new style, 5-button transmitters with brushed aluminum accents and titanium button finish, keyless entry with (2) vehicle operation; LED changes color to indicate vehicle number 1 or 2 Rapid remote response (instant lock and unlock like the factory system); 2-way twin data ports to accommodate both Fortin and ADS data modules; OEM remote compatible Keyless entry, rear glass or trunk pop output, additional auxiliary outputs through data with the use of a data interface module Can be easily switched from a 1-way to a 2-way system through optional 2-way upgrade kit; 2-way upgrade kit includes pager remote, sidekick remote, antenna and charger; plug and play install