2nd gen double cab... amp mount space?

i have a question about what my options are:
2nd gen double cab tacoma... with a dual sub enclosure behind the seat with amprack. i want to run 2 amps... theyre fairly small sized (alpine 400w mono & eclipse 60x2).
one of them will obviously fit on the rack, and assuming theres no way for both to fit, im unfamiliar with whats under the front 2 seats and obviously you cant put anything under the reat seats due ot the storage area... would there be ample space to mount a generally small amp there under the front seats?
im not all too familiar with my tacoma as ive only put about 1400 miles on it so far

id love to just run one amp, but im not having any luck finding a multi channel that can run 50-60w rms @ 4ohms for my front components and rear channels that can get a bridged output somewhere close to 400w @ 2ohms.

if any of you have suggestions on an amp that would suit my needs please share

 

Quick search reveals this amp for your power needs: http://www.crutchfield.com/App/Product/Item/Main.aspx?g=120&i=107PA11005&tp=115

Although with an amp that size you would be hard pressed to make enough room even alone on the amp rack. It is over 26". You can put an amp under the seats, but you will most likely need to remove the seat and flip the support bar over for clearance.