Independent radio producers like the Kitchen Sisters record thousands of hours of sound, but have no system for digitally preserving or providing access to this material. The Pop-Up Radio team built a free, open source archive system with partners at SoundCloud and the Internet Archive, for easy use by producers who lack funding and technical expertise. Pop-Up Radio Archive offers an invaluable opportunity to diversify media access in an era of consolidation. Independent producers of broadcast audio face major challenges: a lack of archival and technical training, a lack of resources, and a lack of understanding about how best to preserve and create access to cultural audio artifacts. Pop Up Radio Archive is a free, open-source, scalable archive system for broadcast audio content, that gives producers a system for storing audio content. Using web services, sound files are uploaded to the Internet Archive for permanent preservation, and producers are given the option of sharing their content through SoundCloud for public consumption.