Hi, Thanks for your cable purchase.  The official B&O wall mount for the Level doesn't allow for any cable connections (other than USB power via the "puck"), however if you remove the rubber cover from the cable recess and feel inside the top of the recess (with the Level positioned as it would be when hung on a wall), you should find a slot in the top of the recess.  This will allow the Level to be hung on a suitably sized countersunk screw, without needing the B&O wall mount. Your cables should then be able to connect.  Please note that you may need to hollow out a small area of the wall surface to allow the cables to run neatly to the Level.  This setup is better when the Level will stay in place permanently, while the B&O wall mount allows easy removal of the speaker. Hope this helps. Kind regards, Steve.  

Thanks, Steve