There definitely are options, they are very expensive however. I had all of my gear ripped out an replaced with an aftermarket screen that replaced the factory unit, a DVD player, GPS unit and I have a third input free for further uses (not sure what I'll use it for yet, probably a HKS Camp 2). Folds out of the top of the dash just like the factory unit, all neat an tidy. Cost several thousand however.
Where abouts are you located? I can suggest a great guy to talk to about options if you are in Brisbane.