Lu,
Our friend is from the great state of Texas.
al e,
My understanding is that MB is no longer offering phone install kits for older models. If it doesn't come from the factory with the pre-wiring then you are screwed basically. Even if you could find a dealer with a left-over in parts stock to put it in, you are looking at $950 for install kit, plus labor, plus $405 for bluetooth puck.
Look in your center console. If you have the plug in for the puck or cradle then all you need is to buy that from the parts and you can plug in and go.
