Sorry if in wrong spot but need help and new here. Ash-x491bhs and iPhone. Set phone to iPhone and USB. All works well but won't launch Spotify. Button to browse and eq is greyed out. I can listen to it via iPod but don't have full control. So I change to bt. Same thing but it says disconnected or failed. Can stream but have to be on bt audio. I want full control from the radio. Need help I think it's a setting. Pandora works instantly and everything else does too. Spotify not so much. Please help and any help greatly appreciated in advance