with it being cyber monday im finding really good deals but im trying to stay under $200 just want more sound for a little money. i think the cheapest route would be 2ch because its cheaper for install kits for 2ch rather than 4ch and two channel would be less speaker wire to use aswell thus saving more money, the two channel amp is also cheaper lol. but if you guys really insist on the 4ch ill go 4ch its not too terribly more expensive...