Hey everybody, today I purchased a navigation system out of an 09 F-150 to replace my older unit on my 08. The 09 has significant updates which is why I'd like to swap them out. Part number of the one in my truck is 6L2T-18K931, and the "newer graphic" one I'm talking about's part number is 9L1T-18K931. The connectors seem literally identical, except for one extra plug that I know my truck doesn't have which I'm guessing is for the Sync equipped vehicles. I plugged the new one in the it turns on but gives me a black screen then turns back off! Any idea what could be the cause of this!? Please I have a return policy on this Nav so I need some feedback asap to know if I should keep it! Thanks, any help is appreciated!

-2008 F-150 Harley Davidson w/Nav & Audiophile