Right im a complete numpty when it comes to this kind of stuff so id like a little help.My bay has a old blaupunkt headunit fitted and id like to run a sub and a amp but it doesnt have any outputs on the back of it,just speaker cables a aerial and a 6dn plug that im running my ipod through,Is it possible to have the amp etc or will i have to upgrade the headunit?Id prefer not to to be honest