Dude!!!! if you can chip a ps2 you will easily!!!!!!!!!!!!!!!!!!!! chip a xbox its childs play!
Decent cheap chip i reccomend is DuoX2
High range chip X3 More wires to solder tho
For a xbox your looking around 9 wires 8 of which can be done by pin header so ull be fine
any problems send it to an installer cheaper and less hassle than a solderless one believe me