MacBook Pro Internal Speaker Replacement

I am trying to replace a blown speaker in my mid-2015 15" MacBook Pro Retina Model A1398 and most of the reviews for 3rd party aftermarket replacements are fair to poor at best. Most report failures shortly after install or complain that the sound is low and poor. How or where can I get the OEM parts to rebuild it the right way? I have all the tools and skills to complete the job, but I want to keep the quality & reliability by using the best parts available. Any thoughts, ideas, or similar experiences are welcome.