If you’d like to upgrade the OEM door speakers in your 4th generation (2016, 2017, 2018, 2019 & 2020) Kia Optima sedan, you’ll first have to take off the plastic interior door panels. Check out my DIY tutorial for the procedure (with the compatible replacement aftermarket speaker sizes), by clicking on the text link or thumbnail image below.
2016-2020 Kia Optima Interior Door Panels Removal Guide
