Now as far as the hearing, I've found it

from Lupe Fiasco (Ft. Gemini) – Dumb it Down Lyrics on Rap Genius

Meaning

Though he told us before that he was earless, he’s recovered his hearing

The “found ears” seem to represent fans that will listen to him despite his refusal of commercial output. He may be “mouthless”, but people still listen to him — i.e. he has gained a “hearing” with the public.

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