If you can put up a photo of your current radio and dash I'll have a look around for you.
Actually after checking around I've found this one-
I believe it may well solve your problem.
Hi. I have a 2004 facelift mondeo and am wanting to replace the standard head unit with a nice after market sat nav/DVD player I can't seem to find a straight replacement and think I'm gonna have to do some modding of the stereo facia to get one to fit? Any help would be great before I start hacking away at the dash many thanks Stuart
aldi used to sell a quite good one & was only 50 odd quid. had bluetooth answer hands free,plus aux etc
also i think halfordds are doing a sony just now for about same price .think they knocked third off it for weekend/monday
Id suggest going for a quality named brand or one that is fitted by the same company. that way you either have a good system or good comeback if it doesnt work.
I have heard several people who have bought the cheaper chinese (ebay) models. some have worked, some havent, its a chance you take also some have had to pay duty also when it comes into the country, which has taken the total price quite a bit. The problem is, if the radio doesnt work and you have to return it, they often have in the sales clause, that you have to pay the postage, which can be quite hefty. Then its all over again paying duty again.
In the mean time, if you have bought it from ebay and it has taken over the 45 day limit to open a dispute,,,,,, what do you know they stop answering emails and wont refund you money and your screwed. Happened to me and several other buyers. Thankfully mine was only for about £30 as apposed to £300