I have a 2010 T27 Avensis with the standard W53828 and bluetooth hands free. The radio is a bit lacking with no support for A2DP audio streaming and I wanted to install a Touch & Go 59006 from 2012. The Touch & Go was without navigation, so I guess it's just called a Touch, but I will use the Touch & Go name in this guide. I was able to get the audio and bluetooth input working straight away with the standard Toyota ISO connectors, but the 8 pin connector used by the hands free micro