Hey im looking for a older memphis mojo cartridge ..the box calls it 15-cm12d2 ..i [MENTION][/MENTION]got it new 2yrs ago and from my understanding my sub was interchangable with the 10", 12" and 15" cone with the same size motor. I have a 12" and it looks like my wires on the voice coil started to fray off around the inside of the cone. I can still use my magnet just need a good cartridge with the same 4 screw pattern