My objective was to create an audio system that would provide the following:
1. Crystal clear reception from the BMW Alpine System that could be shared with my passenger (AM/FM/SAT/NAV/USB).
2. Provide an iPod connection outside of the heated compartment.
3. Bluetooth intercom connection with my passenger.
4. Bluetooth connection to my cell phone.
5. Isolated priority override for my radar/laser detector.
I started out with a direct speaker wire connection using a Autocom #2273 3.5mm Isolation Lead. This gave me a wired connection to the Alpine system. I connected at the speakers rather that the Alpine unit for a clean installation.
For headsets I used the Sena SMH10 Bluetooth headsets for both myself and passenger.
I can do a Bluetooth connection to both my passenger and cell phone.
In order to move the iPod out of the heated compartment and provide integration with the audio alerts from the radar/laser detector, I used the Mix-It2 audio mixer by Mixit Products. The inputs for Mix-It2 are the Autocom 2273 cable (BMW Alpine speaker output), iPod, and a priority override from my radar/laser detector. On the output side I used a Radio Shack headset splitter to provide wired output to the two Sena headsets.
No room under the seat so I placed the Mix-It2 in the RKA tank bag.
Cost of the system including RKA Tank Bag, Autocom Isolation Speaker Lead, Two Sena Bluetooth headsets, Mix-It2, and cables was $728.00.
I now have a real Audio system that works and sounds great!