I just got a 99 550 in, bone stock, and I noticed that it has the same Sony head unit as pictured above. So, that's another source for those looking for 355 head units; Ferrari was using those same Sony HUs in all of their cars.
I still have the factory 355 OEM and Becker 430 OEM stereos for the 355 (There are pics posted earlier in this thread). I have been planning to sell these and other collected parts on eBay, but haven't gotten around to it. I'm pretty open with pricing. email me if interested.
