Hi so I recently read through how to mod your combo to be used both as a cab and as a combo, I followed all instructions but unfortunately the amp only works as a cab not a combo. I thinm my issue is that the amp section has a mono jack but the cabinet part is a 2x12. The cabinet part has a standard mono jack also but that works fine with my separate amp head. The instructions I followed was for a 1x12 amp and I was suspicious to begin with! Any help?! My combo is a Fender Champion 100!