look for a Benz s class GPS Navigation
 

recentliy,my gps navigation need to update,but i want to change a new one,it should have high defition ,7"touchscreen,with ipod,and RDS,who can introduce to me some producer?

i find a producer about nav,how about it BENZ S300 S500 S600 SLK CLASS Car DVD GPS Navigation Player [BENZSDG090] - US$196.00 : Car DVD Player Auto GPS Navigation

you can make a comparison with the one :
7 Inch Touchscreen GPS Navigator with Bluetooth AV IN

i think it is also great

Maybe you will like this GPS,feel free to contact me if you have any questions