
I installed the aftermarket Parrot Evolution Bluetooth kit in my wife's SLK 350, Jan 2007. I ordered the kit and the wiring harness from ParrotKits.com. Here's a link with my install. The kit is OK and there are newer versions available. Chances are, it would be hard to use top down. My SLK 55 has the factory Bluetooth system and it's tough to use down down. My wife is happy with the Parrot system. Here's the link to the install: htt
p://dz1.homestead.com/ParrotBluetooth.html