SOLVED: No audio, and no "Internal Speakers" in SystemPrefs>Sound>Output - MacBook Pro 13" Retina Display Late 2013 - iFixit
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Teardown of 13-inch MacBook Pro With Touch Bar Reveals 'Cosmetic' Speaker Grilles [Updated] - MacRumors
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Amazon.com: GTEK Portable Monitor 15.8 Inch IPS Full HD 1920 x 1080P Screen with Speaker, Second Dual Computer Display, Wider Than 15.6 Inch, External Travel Monitor for MacBook Laptop PC, Includes Smart
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