Thank you for viewing! This is a NEC Service X-SERIES TV control unit that was installed on a 40 Series Vellfire before the model change. (With an on/off switch) It seems to be a product that many dealers also handle. There were no errors or malfunctions until it was removed. The original box and instruction manual are not included. Please consider purchasing with the understanding that this is a used item. - Model Name: X-SERIES TV CONTROL - Function: TV Control - Connection Terminals: Multiple wiring connections - Compatibility: Automotive electrical components