Realise this is reviving an old post but this was super helpful, thank. I just swapped mine to fit an RCD 330 and had the same issue with steering wheel light (and ESP and TPMS) but all went of after driving for a few seconds. I have, however, now got a sunroof that doesn't work at all, but will post a separate thread about that.
Hi! Did the RCD330 install go smooth?
I'm troubleshooting a battery drain from my Eonon head unit. Don't know what gateway I have, but if I get a new revision of it, will it have to be coded or is it plug&pray with the old one?
Thanks!