I just put in a double DIN head unit in my 2000 Boxster and have some parts for sale.
First up is a CDR-220 in decent shape. The knobs could be replaced as they are a bit rubbery but otherwise the unit is good. - $40 shipped.
Next is the cd holder unit of the lower console. Excellent shape - $20 shipped.
Last is the lower shelf/storage cubby from the bottom space of the console. I relocated the HVAC controls to that spot and had to take out the shelf. It is also in excellent shape. - $25 shipped.