Hi, I'mm wanting to put a Wiikey into my Wii, but all i have is a Antex 12w soldering iron. Would this be ok or is it too cold? Also i have two other questions... What size tip do you use? Is any solder ok or does it have to be silver solder...or have silver in it or whatever? As i have both, but the silver takes longer to melt with my 12w. Thanks.