I just installed the FRD04-POD/S in my car tonight. I bought this interface about 8 months ago but was afraid to install it since it needed 12v consent power and ground wire. I did a little research yesterday and found out I could tap into the 12v power and ground wire on the head unit cable. You can access the ipod controls from the head unit, it is a pretty sweet interface. Now I can use my iPod or the XM Radio in the car.