Thanks for the link. WFMU also runs no ads and has no corporate sponsors.

"WFMU’s primary source of support comes from listener contributions made during our annual on-air fundraising marathonand revenue generated from our annual Record Fair. WFMU does not accept underwriting or corporate sponsorships. We receive some support from foundations and government grants, as long as they do not contain conditions that determine our programming content or restrict our independence."

from: https://wfmu.org/about/

I donate every year. It's a great cause to support.