"Get Connected" with Our Range of Cables, Leads & Adaptors! After selecting your primary harness you then select a secondary harness to connect between the ISO connectors and the aftermarket head unit that you have ( this is selected based on what brand and type of head unit you have. We carry both non steering wheel control type primary harnesses and steering wheel control type. ISO connector to suit most BMW models with round pin plug type. Features: No need to cut your car's factory harness / true plug-n-play with Aerpro secondary ISO harnesses Converts factory wiring to universal ISO plugs Makes for easy D.I.Y. installation ISO connector to suit most BMW models with round pin plug type Easy plug and play solution Vehicles Known to Work with this Product: BMW 3 Series 1998-2005 E46 BMW 5 Series 1996-2004 E39 BMW 3 Series 1990-1999 E36
