1. A host system for downloading one or more Radio Data System (RDS) group type processing routines for RDS data, comprising: a data processor; and a host processor configured to download one or more RDS group type processing routines for the data processor, each of the one or more RDS group type processing routines configured to process RDS data for a respective RDS group type, the host processor further configured to assign a reference in the data processor to a corresponding one of the one or more RDS group type processing routines, so that the corresponding RDS group type processing routine is to be invoked by RDS data having the respective RDS group type.