I built a cable and set up for me to use my stereo thru BT to my SENA SMH10. But now that there is the fire sale on parts was having some thoughts I might just get the OEM set up.MY question is was the BT hard to set up? Do you have to reconnect every time you ide? And with the music share option on the SMH10, why would you need 2 modules? Thanks if anyone can clear this up.