This Aerpro control harness allows you to upgrade to an aftermarket head unit whilst maintaining use of your factory steering wheel controls.

Steering controls are considered a primary harness and will require a secondary harness and patch lead to be used in conjunction for plug and play.

Specs: 

• Suits: BMW models with Quadlock connector (K bus)
• 3 Series (E46) 1998 - 2005
• 5 Series (E39) 2000 - 2004
• Mini (R50, R52, R53) 2001 - 2006 (iBus vehicles)
• X5 (E53) 2000 - 2006
• Z4 (E85) 2002 - 2008
• Phone button compatibility: Yes
• Patch lead: Type C
• Notes: BMW Steering Wheel Control Interface.