I recommend directly checking for audio output with a known good speaker at the amplifier.
Attached is the electrical diagram for my 2014 Premium Audio System; hopefully, yours is the same.
The two front door speakers come from the amplifier C2 connector on the driver-side dash.
See attached diagram and amplifier location.
I would disconnect the C2 connector and hook the speaker to the amplifier side to eliminate a possible grounded, shorted, or open wire on the harness side.
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