I moved up from a K1200GT to a new K1600GT. I used to jack into the Zumo for nav and SirusXM. There is no headphone jack on the primary MC interface nor on my new GPS. I see that I can purchase portable battery-powered/USB rechargeable Bluetooth RX/TX that will receive from the GPS and the MC interface and let me plug in my current helmet cord jack. I've used Cardo devices before but sound quality is poor in my helmet. I don't need to take or make phone calls while riding; I'll pull over for that. Any advice recommendations or advice?