What do I have to do to connect my end device, e.g. smartphone, to an AudioInRoom so that I can play my music over it?
The Smartphone, or any device that can play music via Bluetooth (tablet, laptop, etc.) can be connected in the same way as normal BT speakers.
That means you have to activate the pairing (either test button on the AUIR, or via 1-bit object) to be able to pair the smartphone at the beginning. Then the AUIR must be found on the device (name is assigned via ETS) and the music can be played.
Alternatively there is the possibility to connect it via AUX (3,5/6,3mm jack), where the end of the cable which is connected to AUIR has to be connected directly (plug off and connect wires to AUIR).