Are all the connections on the back of a 2005 xA single-disc Pioneer unit the same as what's in a 2004 Rav4?

The Rav4 has steering wheel stereo controls for its stock cd player but I don't know if the controls/connections are the same for the Scion's head unit.

Anyone?
thanks

 

1-week and no replies. Anyone know the answer or know where I there might be a picture of the back of an '04 Rav4 HU with steering wheel control?

Thanks

 

as far as audio/power is concerned it will just plug in ok...since toyota hasn't changed their harness for yrs but as far as the audio controls goes it might or might not work. hope this helps a bit.

 

Yeah, the steering controls are a complete mystery to me. Without pulling a Rav4 stereo, I don't really know what's going on back there. I'm going to keep searching for pics.
Thanks