I bought an the dension ipod ice link plus... for my tc..
It works by pluging the ipod interface to the cd changer harness....

http://www.densionusa.com/icelink_info_toy.htm

Does the Scion Tc even have a cd changer harness?
If it does exist, does anyone know where its at ?

 

I would call them. They dont seem to have all of the installation instructions on their site yet.

 

Is this what you are talking about?

http://cgi.ebay.com/NEW-PIONEER-CD-R...QQcmdZViewItem

It plugs into the aux jack in the back of the HU.
I hope this helps!

-Jason

 

*Edit* Double post