I got today my first CA key from BMW dealer, tomorrow i get the second one, i can confirm CA is working perfect, the key fob came precoded to my VIN so just inserting it in ignition was enough to pair with my car. Now all the CA functions work, i can lock/unlock the car and start/stop engine with key in my pocket. As a bonus i can now close the roof top using the key fob, function not available for standard keys.
CA retrofit is done and i can say is a quite easy to do retrofit. The most expensive part are the keys, all together i paid about 1,000 euro for all parts including keys.
I used controller and aerials from a salvaged car and i ordered new the connectors, the 2 door handles and of course the 2 CA key fobs.
'08 E93 M Sport Package
Mods so far : CIC/Combox, 6FL, 6NF, 6NR, MPEG4HD TV, Soft-Close, Comfort Access, Rear Camera, LCI Tail Lights, LUX Angel Eyes, Heated Steering Wheel, Pro Logic 7, M Cluster.