only upgrading the speakers. One in the passenger door has a problem and pop's so want to change and upgrade and the same time but need the headunit out to do so.....
Not sure about how they are titled in the US but here the unit I have is the AVIC HD3 - II......
http://www.pioneer.co.uk/uk/products...II/index.htmlI
will have a go with the trim bezel and see what happens...