I have been using the MusiConnect SOT lead which is linked into my Parrot MKi9200 for over a year now, and I have to say, its one of the best bits of wire I have ever purchased.
The MusiConnect SOT lead plugs directly into the back of my Ford Focus ST Stereo, and allows me to link the Parrot streaming capabilities directly into the standard stereo amplifier, which provides better sound quality and allows me to control the volume/bass/treble/fade directly from the car stereo its self.
The installation process for the MusiConnect lead is simple, the hardest part is removing your old stereo (hopefully you’ll be able to find the guide on my website). The connectors are all plug and play (as long as you have the correct cable for your car and Parrot Device). There is no need to chop or wire anything at all, which makes these cables so great.
MusiConnect SOT Lead Video Review
MusiConnect SOT Conclusion
These leads can be a little hard to find, and also confusing when trying to purchase the correct lead for your car, and the device you want to use the lead with. The only dealer I could find is on eBay (although I have tried to contact the suppliers of these cables to sell these in my own fashion, and make it easier for customers to find the one they require.)
Overall, I think this is an excellent cable, and always recommend these to people who like sound quality, and control over their streaming from the Parrot blue box, which is just fine for phone calls, but lacks that extra when streaming music.