Superhet (HX+) Receiver for Superior Range, Virtual Tach™ Eliminates the Need for a Tach Wire In Most Installations, New D2D Serial Port Performance Matched for Xpresskit Interface Modules, Bitwriter Programmable for Simple Configuration, Outputs for Optional Horn and Starter Kill/Anti?Grind Relays, Onboard XCR Relays, 4-Channel Outputs, Bi?Lingual Guides (English/Spanish), Two 1-Way 4 Button Remotes, All Required Harnesses for Installation, SKU: DAS8546