Holden Colorado Towing Camera Integrated System
 

Recommended for pretty much every Colorado / 7 from 2014 to 2017 models.

Instead of fitting an external display just to see back of your trailer / caravan or horse float, why not install a complete system with same purposed cameras, to be displayed on existing MyLink display?
It will display tow camera as prioritized camera over factory one, 

from the moment of tow joint.