i have a mercedes benz ml430 (2000) with bose system. i am having problems removing my factory head unit. i was able to get the left side ouy of my head unit, but the right side wont budge at all . has anyone ever had this problem trying to remove their head unit?. i want to install my subs and amp but i cant remove the head unit and replace it with my panasonic. i saw these keys on www.cartoy.com they were specially made for european cars. should i get those and try them? is there any other way of getting it out? i was told by a car audio store that the only way of getting it out is pulling out it really hard.. but there is a 50% chance of it breaking the dash. does anyone know how much a dash would cost? if you have any ideas of removing the head unit please help.