Finished the installation of Gps navigation Unit with ended up purchasing the Kenwood brand navigation unit with Bluetooth and reversing camera function from ppa car audio, visit the ppa car audio in Melbourne they were able to assist me were very knowledgeable and seemed to know what they were talking about. overall, I must admit I am satisfied with what I have received, their professional came at my house and installed it. here is a link to the unit I purchased: http://www.ppacaraudio.com.au/index.php?route=product/category&path=60