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    SMART KEYS USED IN AUDI A7

    Audi "Silver" Key with PCF7945 MCU used in Audi A7 : 2010 to about 2016 models.

    The manufacturer specifies 4H0959754D, 4H0959754DD, 4H0959754K and other 4H0xxx parts number.

    Audi "Silver" Key for Audi A7 appear with Comfort Access / Keyless only.

    Operating frequency : Keys for the US market generally working on 315MHz, Europe and rest of world : 868MHz.
    In several models you can find 433MHz also ( 4H0959754DB key for example ).
    Transponder chip for all "Silver" Keys for Audi A7 : PCF7945AC MCU.