Can I upgrade a single disc 05 stereo to a sigle disc 06 stereo for my tc? I know it is a lot of work but is it the wiring the same? I want to change it b/c there is an aux port in the center console but I don't know if that can be installed since that probably requires extra wiring and drilling. I went to two dealers and one said it could be done and the other said it couldn't. I called scion and they said no b/c the stereos are quite different and are not compatible! Does anyone know what I can do? Has anyone upgraded there stereo to the 06 version?