Hey guys,
Looking at upgrading my head unit in my pre facelift car..

I know I have to cut the bars out to get a double din to fit but I have to do anything else?

I'm looking at getting
http://www.ebay.co.uk/itm/251059338558?redirect=mobile

So do I need to buy anything else at all?
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[b]
K&N induction
Milltek Cat-back
Aero wipers
Custom coloured stripes and overlays
Eibach Extras Lows
Tripe R Splitter
Black Plastics
Wind deflectors
Tinted front, rear and sidelights
Bit of Ebay tat