ml 320

anyone have any experience putting a bigger overhead display in a mercedes ML320 i am doing an 8 inch with built in dvd player.i ahev eperience with this vehicle but never with a unit this big the headliner is weas k in these vehiclee i need info if anyone has accomplished this before. Tips tricks would be helpfull

I have done them up to 10 inches with built in dvd. It's best to remove the headliner and brace the sunroof bracket to the rear roof support. I buy a thick piece of metal about 6 to 8 inches wide and it's about 32 inches to the support. I have a machine shop bend and fabricate it for me. Then you simply bolt it in and put the headliner back in. It is definately more work but I have found nothing else to work as there is no support execept for that little strip of sunroof bracket to work with. I wish I had some pictures as it comes out very nice with my procedure. DanDan