Quote Originally Posted by DynamicSound
Your stock unit does not come with Audio Outputs, so you can't just hook up RCA's directly to the radio. I know this is still true with the new IS and GS models. Which is weird because the new Scions do come with this. My 08 XB has Front/Rear/Sub outputs.

You need a Hi/Lo convertor. It taps into the speaker wires on your rear speakers and will convert that signal into Audio Outputs. They have both 2 channel and 4 channel ones. Then you just plug your RCA's into the box and you are good to go.

Just FYI, I sell several levels. The best quality one I sell is $10 for the 2 channel one and $15 for the 4 channel. I could also provide you with the T-Taps to allow you to tap into those speakers without any cutting. I will throw those in for free.
You could do ut for me? How much? oh here is a link....
http://my.is/forums/f103/aux-aux-out-sticky-220767/