Has anyone ever connected a 12v fan, say like out of a computer, to the internal 12v fan on a ps3 fat? The ext. has 3 wires, pos., neg. and a fan speed wire. Which is what the wires coming off the internal fan are as well. So, could the ext. wires be spliced into the internal fan wires without damage or loss of power? Would both fans speed up as needed? thanx