I have dual G3X non touch and a 430W. I am about to upgrade to a 650xi. Please let me know if the 650xi integrates fully and will use all the 650xi bells and whistles with the non touch G3X. I like the non touch units. Also I understand that the 650 will require replacing the tray, backplate and connectors. Will I be able to use the same wiring harness or will it require additional wiring (wires) for the more bells and whistles of the 650?