Yoyo! How is everyone. Well the time has come for me to install the RNS510 B series into my 2008. What part number for the Bluetooth 9W7, Some end in J- 7P6 035 730 J or 7P6 035 730 N. There is more as well. What is the difference? Is there a difference? I need to do this quickly. My existing RN2 is broken and causing electrical issues. Help!