hi joshC,,,all you need to know can be found in here viewforum.php?f=27
but to help you more ,if you go for a jvc unit then you will require this to retain the steering wheel controls
http://incartec.co.uk/nissan/1929/1036/ ... owser.aspx
and to improve on the sound have a look here
viewtopic.php?f=27&t=61360
hope it helps.....theres a search button in the top right hand corner which can be most helpfull