AEM's OBDII CAN Plug Play Adapter Harness make CD Dashes the perfect racing displays for track day enthusiasts who want to be able to see engine and vehicle data but are still running a factory ECU. This is especially true when a CD - 5 Carbon or CD - 7 Digital Dash and OBDII CAN PNP Adapter Harness are combined with the Vehicle Dynamics Module to add GPS, 3 - axis accelerometer and 3 - axis gyroscope for track mapping and lap times, and critical vehicle dynamics data including G - loads, roll, pitch and yaw. And for CD Dash owners with CAN OBD - II who are already using the dash and receiving channels from a data logger or other CAN - enabled device, you can now add additional channels through the OBD connection with no additional wiring