... AD900 come with the Hitag 2 function.Support on programming the transponder key and remote for Audi A8, VW Touareg,VW Phaeton ... E90, E91, E92 EWS3, EWS3+, EWS4, CAS, CAS2, CAS3.AD900 Key programmer GENERAL INFORMATION: The professional duplicating machine, Transpronics, has been ... you know, new system cars lock the transponder during the programming. So you can not use these transponders again. But ...