1994 Honda Civic Constant Power Drain

My 1994 EJ coupe has a power drain at all times. I will turn the engine off and in a couple hours the cars battery is competely dead, no lights no clicking nothing. I have pulled the alternator and the battery to have them tested and they both came back testing fine. I do have a system but I have removed it to see if that will make a difference and it doesnt. I am lost Help!