You can easily connect virtually any phone to an amp, provided that you use a 3.5mm jack to phono cable. Simply plug the jack into your phone, and the other end (the red and white plugs) into your amp of choice. Make sure the volume of the phone is up at about 3/4 to begin with, and as ever, the amp at zero, and gently increase. If you get a call, that too will come through the amp and your speakers/headphones, but you will need to speak into the phone for the caller to hear you! And be careful of feedback!
The sound settings on your amp depend on your choice of sound. You will probably only get s stereo sound from your phone, but an A/V receiver should convert that to 'virtual surround'
Kenton.