As it comes closer to buying my system, 10 days , Im going to go a differnt route and replace all speakers in my car with kicker ks coaxial and componets, ill be taking out the factory subwoofers and custom installing the kickers, also ill be re wireing the whole thing and run all 4 speakers off of a 350w kicker 4 ch amp, the subwoofers will be 2 15in kicker comps running off a 400w rms mono block amp, So far as the headunit its a kenwood x994 and has plenty of crossovers.