Radio/CD RD4 N1-02 AUX2 problem!

Hello,
I have original Radio/CD RD4 N1-02 (without MP3) and Bluetooth HandsFree, on AUX1 connected HandsFree, AUX2 is free, but
when try to activate AUX2 form Lexia get a error on programing! Why?
Somebody have same combination with working AUX2 Input?
Thanks in advance.
I have original Radio/CD RD4 N1-02 (without MP3) and Bluetooth HandsFree, on AUX1 connected HandsFree, AUX2 is free, but
when try to activate AUX2 form Lexia get a error on programing! Why?
Somebody have same combination with working AUX2 Input?
Thanks in advance.