Excuse me for my ignorance, but I’m about to start my stereo build from all the outstanding ideas posted. But I’m still not 100% clear on the components I need for my planned set up. I am a Sirrius XM radio subscriber, and I have the app on my cell phone. and it syncs. up great with a blue-tooth connection which I have for my backpacking speaker and my blue-tooth capable car radio. I’m reading a lot about people building systems with ONLY a 2 channel amp and speakers ?????. Is this all I need to install and be able to sync up with using my phone app to connect to Sirrius, or do I need something else in addition to the AMP. I thought I would need some kind of blue-tooth cabable reciever, and am curious if amp alone is capable of picking up blue-tooth Sirrius signal from my phone.??? I’m learning.