TechnoResearch TR4-001-007 Centurion-Audio Audio Configuration System

Radio and speaker zoning and configuration system that doubles as a diagnostic tool. Programs after-market radio and speakers; can activate intercom, Bluetooth, navigation/ compass, CB, rear speaker switch and more. Also monitors engine parameters such as RPM, TPS, battery voltage, engine temperature. Read and clear DTC (Diagnostic Trouble Codes) for ECU, TSSM, BCM, radio, speedometer and ABs. Made in the u. s. a.