$600 for the components, plus extra depending on how you get them here.
Then however much you can get them fitted for.
Definitely less than a day's labour for one person.
The good part is that the reversing camera Brian supplies i much better than the one supplied by Nissan.
2012 DMG Recaro Edition | Litchfield Stage 5 | Litchfield Bilstein Suspension | Milltek 90mm Exhaust | Alcon Superkit | Iphone remote start | Car Kit Company front and rear cameras | JM Carbon matte interior panels | Over the Rainbow maintained paintwork
2013 Q5 3.0TDi S-Line Plus S-Tronic | Every Extra