kenwood amp problems

Greetings. I have little to no knowledge of car audio. Just loud music. I have an old Kenwood 640W KAC-8401 (2003) in my 'vintage' (1994) yellow Mustang. Anyways, it's draining my car battery every night so I actually have to pull the fuse after driving. Any thoughts please? Works fine...

Hey evryone so im in a jami have a system I just installed into an older car and by old I mean 2000 the car itsself is a 2000 honda crv but the amp I hooked up is killing my battery now im not a newbie nor am I pro butiv personally never came accross a drain I couldnt fix so this is the...