BMW Z4 2003 2004 2005 2006 2007 2008 Stereo wiring Harness, Dash Install Kit Faceplate, with FM Antenna Adaptor (Combo Complete Aftermarket Stereo Wire and Installation Kit) Stereo wiring Harness, Dash Install Kit Faceplate, with FM Antenna Adaptor (Combo Complete Aftermarket Stereo Wire and Installation Kit) ....DASH INSTALL KIT + RADIO WIRE HARNESS + FM ANTENNA ADAPTER **(INCLUDES ALL PARTS NEEDED FOR INSTALLATION OF AFTERMARKET RADIO) *** THE HARNESS (WILL NOT WORK on PREMIUM / AMPLIFIED SYSTEMS) **WILL NOT WORK ON FACTORY AMPLIFIED SYSTEMS: LIKE BOSE, INFINITY, JBL, ONSTAR, PIONEER, WARNING CHIMES PLAYED THROUGH FACTORY SPEAKERS, AND OTHER PREMIUM SYSTEMS *** DOES NOT WORK ON VEHICLES THAT HAVE R.A.P/CANBUS/ONSTAR/SYNC OR DELAYED TURN OFF SYSTEMS; (WHEN RADIO STAYS ON AFTER PULLING KEY FROM IGNITION, THEN TURNS OFF WHEN A DOOR IS OPENED) ! *** THIS COMBO KIT - REPLACES (FACTORY/OEM STOCK RADIO TO AFTERMARKET STEREO) -STANDARD SOUND SYSTEMS ONLY. (Not for CANBUS or Premium/Amplified SYSTEMS) - RCA to headphone adapter included