A:AnswerNo brackets for the speakers come with this, you can mount these speakers to the wall with the keyhole openings on the back of the speakers themselves. As far 24 gauge speaker wire, it comes with some that looks to be 18-22 gauge so I guess you could, but it would probably be better transmission with 18 gauge or lower wire
A:Answeryes, there is instructions to do that in the packaging and on the Yamaha website should you choose to buy. I believe connection is the same to any new receiver on the market