How to put fan control knobs

[narbeh]

Hello, i really want to know if those fan control knobs have 2 pins because im adding it to my xbox360 and dont want to waste money. the control fan knobs are the small circles where you twist counter-clockwise to speed up the fan

 

[narbeh]

come on guys need help and 1 more Q

do i need 2 control knobs if i want to control the both rear fans on my xbox36000???

peace....

 

[kilo_17]

What exactly is it your trying to ask? You weren't very clear

 

[narbeh]

im just asking if the knob has 2 pin connectors or more.
and how do i wire them negative posotive i want a working twist knob on my 360 and i twist it left the fan goes slow i twist it right the fan goes fast

EX

http://www.youtube.com/watch?v=47rvcGE-sl4&feature=related