are you using 4 or 8 gauge for your wiring?i would suggest 4 gauge, i would also suggest gettin 6x9's on the parcel shelf instead of the rear panel speakers, or better yet both! reason being that much bass is going to drown out the door speakers even if they are amplified, the power rating on 6x9s are way higher then door size speakers, i mean i love my bass but i also like to hear the vocals, clarity is key!
ave a look at these
http://caraudiosecurity.com/shop/product/products_id/5650.html rated 160w RMS where as your door speakers are 35w RMS
i have the older gen vibe SEK69 , these are powered through an alpine mrp-f240 which sound exquisite and an mrp-m350 powering an infinity sub.
also remember to settle all the speakers in, by which i mean dont crank it up fully for at least 30-40hours of play time, this will allow the voice coils to flex and adjust, if you dont do this it could destroy your speakers!
im also thinking you will not have enough space in your boot to fit 3 amps let alone the 2 pioneers you want. dont screw them onto the sub enclosure either amps are not designed to be fixed there, esp with that power rating.