walnuts

hmm thats no , fun. I jsut installed the oem Sirius in the car but decided I want the Z2....

I am looking at installing the Z2 in my 04 330ci. But was wondering the following. 1. Will my oem sirius tuner work directly with this head unit or do i still have to get the add on? 2. Will I be able to use my steering wheel controls for the phone? ( i know you need an addon for this but i have only seen confirmation that the volume and tuning buttons work, I have not seen confirmation on the phone) THanks!!