Honestly if you have the 6fl option stick with that, the iphone will work and charge, with that set up the only disadvantage in the phone will be in the glove box. " at this point the phone work fine with my brother in laws 335 with NAV" I didnt bother to check or ask if he did any updates I do know at one point he had the hack on the phone that may have been long removed.
I brought the eject box, adapter and Snap in adapter thinking it would give steering wheel funcitons, unfortunitly it doesent
: but it does charge the phone well though
you will not be able to access the aux port.