i'd like to, but i have 2 shops semi-close to where i am and 1 has alpine,rf, they did have kicker, memphis and jl but they don't like selling or dealing with car audio and the other shop is really small and just opened, i have to go and check out both of them soon. my main reason for asking what brands is because i know the main brands out there, but when i read a truckin' magazine i don't know almost any of the brands that are in the feature vehicles.