Have been searching around for a way to set the FM bands as default when switching to the tuner and I cant find it. At least I can turn down the volume on AM so I dont blast my ears when the switch happens, but still

Fitted the heated rear screen aerial and it has made a massive improvement, however there is still some of the issues mentioned above. Im stripping my car this weekend to wire in a few extra bits and try to cure the still ever present alternator whine so will check the tuner wiring then.