Alright, its about that time for presents and i am looking for a system for my 1966 Coupe. I am wondering what size speakers you can put in the doors in front and if i can fit two 6x9's in the rear. I am also wondering if i put subs in the trunk(i was thinking about 2 10" or 2 12" Rockfords) if there would be a lot of vibration. I thought i read somewhere that people had problems with vibration in the early stangs. I am choosing between head units that i found that i like the most-Kenwood Excelon KDC-X879 and a JVC KD-AR3000 ARSENAL (both cheap on ebay). also if anyone has one of these head units tell me how you like them. any help is appreciated.