I have an 04 gx and i would like to know if its possible to use the brain out of say a new model gx. So in other words i want to upgrade from the 3rd version to the 4th gen. nav. If its possible, more then likely i'll get the brain from a salvage gx

 

why would you want to do that? i mean the only thing i could think of is the different look from the vais from your ipod..?