The 250-9622 is a 100% complete Rostra Cruise control upgrade kit for the 2011-2013 Mazda 3 . Step by step installation instructions included, and located below. Easy installation with very little disassembly. Cruise switch installs on the plastic shroud that surrounds the steering column, on the left hand side. Please call with any questions on application or installation. 3 year warranty on parts only.