Have been looking for these for a while but didn't want to pay £120 for one.
In car emporium have them for £84.99 + £11.50 postage.
Although they are listed as "ex display" they are brand new units from Sony, simply without the box, but with all other ancillaries (manual, remote, leads etc.). Full 1 year warranty/
I asked "How can you have EIGHT ex display units" (which seemed unlikely) and was told they have to be sold as "ex display" due to having no box but are as new.
The reason this unit is so good (imo) is that there is a USB port, and bluetooth built in. So you can put your music collection on a USB stick, but also use the head unit as a hands free kit, or even just play music off your phone. Sony head units are also reasonably decent quality.
£120 + P&P everywhere else.