Thanks, I have an ext. cab s-10 (2003) As for the equipment I have chosen what I hope is gonna give me what I'm looking for which is a great sounding and good, not great, spl stereo. I decided on Critical Mass. I have already got my speakers, (1) C522 comp. set, 1) C652 comp. set, 4) SS82 8" (midbass), and 2) UL12 subs. I will be powering up with 2 Critical Mass 5 channel that should be shipped in around 30 days. (2500x1,200x4). The only other thing I have is an extant P500 parametric eq. I really need to find out the output voltage? I bought it kinda not thinking about that and I can't find it in any of the paperwork. Not sure if xtant is even around anymore. (MTX?) Head unit, alt., wires, line drivers(if needed), batts., etc. I am still looking for what fits my needs. (price vs. sort of thing) I will not let a "couple" $$$ mess up my project but I am trying to keep it down as best I can.