This Can Bus Connector from BOD Engineering is a great fit for your vehicle. It works with the 2017 - 2019 GM L5P models equipped with a 6.6L Duramax engine and the 2020 - 2022 GM LM2 models with a 3.0L Duramax engine. Part number is BODL5PCAN17 - 19. Note that when using it on the 3.0L Duramax, you only need the 3 smaller connectors and not the Large DEF Tank Connector.

Using this Can Bus Connector is quite straightforward. First, make sure your vehicle is turned off. Then, find the appropriate connection point in your car based on the year, make, and model it fits. Connect the 3 smaller connectors to the right spots. If you're using it on a 3.0L Duramax, don't use the Large DEF Tank Connector. As for maintenance, keep the connector clean and dry. Check the connections regularly to make sure they're secure. If you notice any signs of damage or loose connections, replace the connector as soon as possible.