If you’d like to upgrade the OEM door speakers in your first generation (2010, 2011, 2012, 2013, 2014, 2015 & 2016) GMC Terrain SUV, you’ll first have to take off the plastic interior door panels. Check out my DIY instructions for the procedure by clicking on the text link or thumbnail image below.
2010-2016 GMC Terrain Interior Door Panel Removal Guide
