Im working on a hybrid 5 channel car amp called a Kicker CXA660.5 which has A/B audio rail power on the front/rear outputs and D audio rail power on the subwoofer channel. It appears to have two separate primary power supply circuits, one being for the A/B amp and other being for the D amp. The primary FETs for that sub amp side are blown and burned so badly that I cannot see the part ID, its a TO220 package for both parts, I compared it to a cx300.1 kicker amp and I think its supposed to have AOT460 FETs in those spots but not sure on that. Can anyone confirm if that is the correct part and if so what parts might be sufficient to replace the AOT460 since it comes up as obsolete and not available on digikey or mouser.