03 Reg Cab Ranger 8'' Kicker Comp

Ok I just bought this 2003 ford ranger reg cab in july and am really low on cash. I built a box that fits behind my seats and I bought 1 "8 kicker comp. The volume in the box is only .42 instead of .50 but I am going to fill box with pillow stuffing. Anyways I really need help on choosing a good but cheap amp and I am also completley confused on how to wire this thing. I want to use the factory head unit for now untill i get some more cash, will a FAI3 adapter work? Also what other parts will I need?

you dont need to use that adapter.  a good low priced amp is the alpine mrd-m350. it has speaker level inputs. so you can use a factory deck.  it,s rated 200 watts into 4 ohms and would work great with your kicker. you can pick one up for around $150 .  the amp instructions will tell you how to hook it up the way you need to.

hope that helps