OK, so I'm looking to pick up a good old school amp that has the option of having a bass remote. They almost all use some form of a phone style connector for attachment. My question is... has anybody ever tried to interchange brands or remote knobs and do they work universally? Specific example... the most prevalent knob available on ebay are Rockford Fosgate ones. Well, if I want to use one of those on an Infinity or Sony or Kicker amp will it do the job or would a person have to find the exact one?