KEYLESS ENTRY DONE RIGHT! The KL550 Keyless Entry Unit offers you a superior quality keyless entry unit at an affordable price. Packed full of features! The KL550 Keyless Entry Unit allows you to lock and unlock your doors and still have four functions left over for any other power accessories... all by remote control! You can use these functions to control power windows, trunk, remote starts and much more!The KL550 comes with built in relays (which reduce wiring time by as much as 70%) and detailed instructions to ensure easy installation, even for the ""weekend mechanic."" The KL550's Built-In Door Lock Relays work on negative, positive and five wire systems, making wiring up the KL550 fast and easy. The KL550 is backed by a Limited Lifetime Warranty. - Built-In Door Lock & Unlock Relay: Stop wiring up external relays! AutoLöc offers B.I.R.T (built-in relay technology) resulting in one of the most reliable and easiest installed security system on the market. Compatible with all door locking systems, including reverse polarity! - Independent 4 Button Remote: Push button 1,to lock your doors, and button 2 to unlock your doors. Use button #4 & #3 to activate your accessory output (ie. trunk pop) and all other items. Independent buttons make the KL550 ideal for shaved door handle kits and remote start units. - Code Learning: Lose a remote? Don't worry AutoLöc's KL550 can learn up to 4 different remotes. Each remote has its own coded frequency to ensure your vehicles protection.- Parking Light Output: AutoLöc Keyless Entry Units offer a built-in parking light output. This allows the unit to flash the parking lights once on lock and twice on unlock. This visual conformation ensures your vehicles safety.-Starter Kill Output: In order to protect your vehicle when you lock your doors by remote the unit automatically cuts your ignition wire. In the event of a break in a car thief will not be able to start your vehicle! This unit also qualifies for car alarm insurance discounts from all major insurance agencies. In most cases this discount is around 5% to 20%!Featured on several TV shows including Monster Garage, and Pimp My Ride AutoLoc kits deliver where all others fails. Insist on the best, and insist on AutoLoc and you be glad you did.