The Mégane II Owners' Club

i'm trying to install a second hand cd changer to my megane 2 which has a tuner list radio.
it's in and wired up but my radio won't find it and it won't accept any cds.

think i may need to input a code but how as changer not asking for one(also i don't have one)
any help would be great

See this handy post...

viewtopic.php?f=12&t=12841

Also i could be wrong but i thought it was only the 'update list' player that accepted the multi changer.