first i would start by saying look for head units... 2,000 dollars sounds like your going to want a super nice setup, maybe for show???? get something that looks good, but ya know looks arent everything.... maybe an Alpine or Kenwood or JVC... eclipse spks are nice... and 2 10w7's.... you would be highly satified with one.... but if you want a competition set up go with 2... maybe you can go with all jl speakers (subs and reg. spks.) and then alpine head unit and amp... that is pretty easy stuff to get. i recomend ebay 110%!!!!! i buy all my caraudio on ebay!!! and i havent went wrong yet. your best bet is to buy from stores that sell on ebay... sometimes you might get a warranty and you will not get screwed over (99% prolly wont get screwed) but yeah man looks like you got your work cut out for you... all i can say is do your homework before you purchase... and if you cant find any info... ask on here....
03 S-10 xtreme
HEAD UNIT - Kenwood Excelon KDC-X869
4X6'S - Kenwood Excelon KFC-X468c
6.5's - Kenwood Excelon KFC-X168
SUB AMP - JBL BP1200.1
SUB - Kicker Solo Baric S10L7D2