I have a couple of questions about the bluetooth system in 07 S80s.

1) Is the system the regular old add in module that sticks to somewhere on your dash/wherever, or is it integrated into the car where it will display caller ID information and such on the car display (either the speedometer/tachometer displays or the HU display)?

2) I don't have bluetooth installed in my car from the factory. If I were to get it installed now, can I get it installed in an integrated type of unit, or would I have to get the old stick on unit?

3) If I were to do the install myself, about how much would the parts for the bluetooth unit cost? How hard would it be to install?

4) Is bluetooth a standard accessory on new 08's, or is it optional?