MagiDeal 3.5mm Jack to 18Pin Dash AUX-in Adapter Cable for BMW E46 2002-2006 This cable will enable AUX mode on your August 2002 or later Business CD head-unit. Our cable will allow your head-unit to go into an AUX mode which would normally not show. You will gain the ability to play any audio you wish through your head-unit using this mode. Socket Type: Female 3.5MM Jack plug Length: Approx. 1.5m