Originally Posted by Tigumz
Echo the above comments and especially check your ground connection. In my E39 and E60 hardwires, I grounded to one of the screws on the sunroof motor.
I did the same on my E39 and E60 M5s, however I couldn't get any of the sunroof screws to work when I hard wired into the F10. Had to use the wire as described in he step-by-step instructions quoted above.
Ordered: 2016 Silverstone F10 M5
Current: 2013 Monte Carlo Blue F10 M5 (ED on 9/1/12), 2014 Anvil WW Jeep Wrangler
Previous: 2009 Carbon Black M5, 2006 Silverstone M5, 2003 Sterling Grey M5, 2000 Anthracite 540i6, 1998 Jeep Grand Cherokee 5.9Ltd, 1990 Eagle Talon TSi AWD, 1978 Mazda RX-7