CBK Authentic New 3.5MM Female AUX Audio Adapter Cable for BMW E39 E53 X5 X5M Z4 E83 E85 E86 X3 Mini Cooper iPod iPhone MP3 This Kit will give you a 3.5mm female Jack plug to your iPhone iPod or other MP3 player to plug into your BMW stereo.Since it plugs into the aux port directly on the back of the head unit, there is no loss of sound quality. You will need to remove the stereo to fit this kit to your car. Compatible with: 2003 - 2008 BMW (E85/E86): Z4 (2.0, 2.5, 3.0 & Coupe and Convertible models) 2004 - 2010 BMW (E83): X3 (2.0, 2.5, 3.0 & xDrive models) 2000 - 2006 MINI COOPER: COOPER (R50), COOPER S (R53) & JC WORKS (Coupe & Convertible) Radio Boost CD 53 / Business CD Cars with SA 662/609 only Note: 1. Please make sure that this connector of 12-pin socket casing fits for your car before you bid 2. Please make sure that this only works with Head Unit with "MODE" button . It's not compatible with old units without MODE button or cassette or Navigation Players.