You will need a distribution block. Use 4 gauge wiring from the battery all they way back to the fused distribution block. But don't forget the inline fuse.
http://www.partsexpress.com/pe/showd...number=263-691
or this one
http://www.darvex.com/miva/merchant....roduct_Count=1
use a 100amp ANL fuse like this one
http://www.partsexpress.com/pe/showd...number=071-950
You can use a simple AGU fused distribution block like this one
http://www.partsexpress.com/pe/showd...number=263-688
or
http://www.darvex.com/miva/merchant....roduct_Count=1
Or you can use one that accepts MIDI fuses like this one
http://www.darvex.com/miva/merchant....roduct_Count=1
With whatever you pick out make sure they match the Fuse rating on the amp. I think they use either 50 or 60 amp fuse, check into that before you get the fuses.
From the fused distribution block, 8 gauge power wire will be good enough. For power wire compare prices on Darvex, Parts Express, Ebay, Knukonceptz on ebay(their site is down, how lame)
For the ground wire use 8 gauge from the amp to each amps on grounding spot, scrape away the paint to get a good ground.
I find those diagrams here
http://www.jlaudio.com/tutorials/wiring/index.html and on sounddomain, when you pick ANY sub, click on the subwoofer wiring options link.
http://www.toyotanation.com/forum/t15196.html
Read as much as you can from that link, and definitely read this thread.
Basic Amp Install Instructions