08-24-2013, 09:28 PM
Just installed the JB4 the other day and i feel your pain... you need to make sure the arrows are facing the same way.. once i figured that out it was pretty easy from there. the power wire was the other pain... If you spend a few minutes looking at it its really easy. A few better pictures would help. Let me know where your hung up.
2009 BMW e90 335i 6AT, Sport Package, Cold Weather Package, Premium Package, Logic 7, Space Gray Metallic, Dakota Gray Leather
BMS DCI, BMS JB4 G5 ISO, BMS OCC, BMS CP