My buddy has a siren and I can't figure out the answer anywhere so I figured if anybody would know it would be someone here. He has a Whelen 295HFS8, and wants to change the T3 mode to the powercall tone. FIrst of all I am not even sure if this was an option yet from them when he got the siren, and if it is how to go about doing so. He sent me a picture of what looks like 8 small rocker switches on the amp, I am not sure if those need to be placed in a certain sequence to program it or what. I looked on whelen's site for the manual and it is not there, and of course he has long since thrown it out. Thanks for the help.