I got installed C8020TS Chinese head unit in 2014 sienna by an installer now I find out the map on the unit is very old like from 2011 & also the unit has old IGO Primo 2 on it. which IGO primo & how can I update on the unit as well which MAP & how I can install on it.
it has 4GB SD card.
Last edited by D.I.I.; 22nd August 2014 at 09:38.