WTB soldered xbox360 pcb

So I got through all the woodwork and mounting of the controls in my custom stick, came out looking beautiful, and now I’m at the point of soldering it all together, and I seem to keep failing.

I’ve been through two pcb’s and every time one of the contacts either comes off or melts, or just doesn’t work. So in the interest of not wasting any more money, I want to buy a prewired pcb.