US 2002 X5 (3.0) Bluetooth Questions

[bd3500]

Hello,

I am considering adding Bluetooth to my 08/2002 build 3.0 X5. It currently does not have bluetooth or wired phone so it looks like I am starting from scratch. I do not have Nav.

After reading a bunch of posts and bimmernav.com I have some questions:

1.) What is the SES plug for? How do I know if I need it?

2.) I pulled the upper console out and saw the vent where the mic goes. The mic is not there. I could only find a 6pin wiring harness. Does this mean my X is not prewired?

3.) My steering wheel has a button that has a face with a sound coming from it. Should my X already be prewired?

Thanks, I am just trying to determine what parts I need.

Best,

- Brent