RNSE aux coding


Registered User
Hi I was wondering if anyone could help on a problem I'm having with an Audi B7 RS4 of a friends.

the car has a RNSE fitted with the standard coding of 0309716

He already has the lead installed and is struggling to get it working with the coding provided, I have tried it following vcds guidelines and reset the unit but aux still doesn't display

I was wondering if it's down to the sw version on the rnse or if anyone has come across this problem before