For his Public Broadcast Cart, a work completed for the Wireless Lab Park Days in New York City (September, 2003), Ricardo Zuniga constructed a mobile radio transmitting station on a common grocery cart, now presented at sonambiente 2006. The transmissions occupy two spaces: the audible space of the cart itself (via speakers mounted to the cart) at Alexanderplatz and in public space; an FM radio frequency [UKW frequency 95,2]. Visitors in Berlin are invited to create their own broadcast for the potential audiences. Cooperation with tesla berlin e.v. and radioeinszueins