Well he did mention V4! 
The V4 has a couple of tricky connections even with the DUO chip so I agree visit a pro.
If you do choose to attempt the install yourself - check out the link in my sig - takes you to some helpful info.
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[size=4][B][color=BLACK]ShadowKnyght[/size][/color]
[color=purple]Electronic Engineer[/color][/B]
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