First of all, great thanks for putting this much effort in your application and making this possible. Respect!
I've got a Audi A3 SB MY2014 and a HTC One X with S-on.
When installing the rSAP installation app I'm not getting the error about the s-on, and the phone won't boot in to recovery.
Instead, it just installs the files.
When connected to the car, it keeps saying it has no Bluetooth connection, while the car says it has.
What went wrong?