No response from Aurender customer support

Very surprised with your experience.

But…

There’s a Conductor app upgrade in the app store. Try it and see if it resolves your issue with disabling Spotify.
As to selecting a streaming service upon starting the app I personally don’t see a big deal about it but you can submit a new feature request.

They also have an official Aurender discussion forum over on audiophilestyle under MUSIC SERVERS. I know Aurender's tech support hangs out there and have answered my questions before.

I found Aurender support to be hit or miss so don’t feel alone.  Never did get a response through the app so I would email directly.  With direct emails responses would normally come in a couple of days.

@lipdog

I emailed AURENDER regarding your issue described above. Please send an email to sales@aurender.com and they will help you.

Let’s concentrate on getting you connected to AURENDER asap to get your issue solved. Thanks. LMK.