Filter Filters Metra BMW Remove All Filters Price Under $50 (4) Condition New (4) Model Z4 (1) Radio Size Single DIN (1) Kit Material Plastic (1) Metra 71-8590 Reverse Wiring Harness for Select 1990-2002 BMW Vehicles OEM Radio $21.45 Metra 70-8591 Amplifier Integration Harness for Select 1992-2002 BMW 3... $20.95 Metra 70-8590 Wiring Harness for 1990-2002 for Select BMW Vehicles $17.45 BMW Z4 2003 2004 2005 2006 2007 2008 Single DIN Aftermarket Stereo Harness... $29.99