nxstrikerxn

Hi I was wondering those of you who use bt45 or usa spec hon2 or hon3 that connects to the head unit or xm transmitter, how is the music quality is it on par like listening to the xm station or less. I am trying to see which auxiliary module I should get the one that connects to the headunit and use the 3.5mm cable or bluetooth thru xm1 or 2 please share you experience.