concert ii to symphony ii


Registered User
Hi guys,

looking for some advice guys, ive searched and not found the exact info i here goes!

My dads just bought an b6 a4 with a concert 11 headunit, ...hes just bought off ebay a symphony ii headunit from an o4 a4 but what exactly does he need to change for it to fit properly? Any advice on parts numbers will be greatly appreciated!

i take it he needs a new cage and a climate control unit? any idea of the cost of these things?

thanks peeps,..still a great forum i feel.

Issac Hunt

Active Member
VCDS Map User
Yes will need a new cage, plenty on Ebay or from Audi. You will either need a new climate control unit or you can modify the original one by trimming some material from each side of it.

Take a look at this link, it documents the swap from single to double DIN.

Conversion Fron Single DIN


Registered User
If he was going to the trouble of doing the conversion, he'd be better sticking in the RNS-E unit instead!