yo man buy a regular about 4 gauge wiring kit should do and what it should be should be a large red wire, a large short brown wire, and the small ass blue wire and then to av cables
red wire goes on driver side of car (start running wire through the engine and though the fire wall) just find an existing whole with wires already goin through it and just string it through man run that to the amp
then run all of the other wires on the other side
this is so there is no buzz from the wires coagulating together
so then take the short brown wire and wire it to an existing screw or bold try and make it attached to the frame of the car scratch the paint away and then put it there
the other 2 ones go to the head unit and plug the small blue one into the blue and white wire coming out of the back
then the other 2 ones just plug right on in
i suggest getting this one
it might be allot more than you need but its always good to have headroom so that you are not over powering your amp
i would suggest this one for now
http://shop.ebay.ca/?_from=R40&_trksid=p3907.m38.l1313&_nkw=hifonics+1600&_sacat=See-All-Categories
if thats too much then go for the lower model with just enough power and its cheaper
http://shop.ebay.ca/?_from=R40&_trksid=m38&_nkw=hifonics+1200
if you want you can go for a different amp model but what ever works for you i guess