ok i have a pasasonic c7301u, now i have 2 jl audio tr650 cxi's. I have a profile ap1200 running two re 8's
i have a 91 toyota mr2, and well i dont have space for a new amp (i do but itll be a hassle and im struggling for cash)
so ya the stock rear speakers, are 2 inches....lol and i can fit 4...