Please help... Need stereo diagram

I was able to swap my 2010 JBL head unit with a 2014 JBL navigation unit using a Entune wiring pin out diagram off a 2012 diagram. I hit a snag though. The wiring configuration for the voice signals wires that control the voice navigation directions doesn't match with 2012 to 2014. When I use my navigation you can hear the music dim out when directions commands are prompted but no voice. I even went to my local Toyota dealer. I was told that the stereos couldn’t be swapped. After he seen it with his on eyes. He went into Toyota TIS system and was unable to locate the pin out. Could anyone please tell me where or how to find 2014 stereo pin-out diagram like this? Thanks in advance...