LV Focus audio replacement

[LordFordNZ]

Has anyone had any experience with replacing the factory audio in their Focus? I have been looking on ebay and there seem to some models specially designed for direct replacement with the need to modify any trim parts. They have DVD/Sat Nav/Bluetooth even TV tuners in them....pretty sure the insurance aspect of these..watching TV while driving???...they would run a mile....though aside from this, any one done this? Link is for a system I was wondering about:
http://cgi.ebay.com/ebaymotors/ws/eB...TQ:MOTORS:1123

Thanks