[TahoeTexan]

Someone said that only the JBL head units have an external amp under the front passenger seat. The non-JBL head units are built into the radio.
Here is the old crappy back speaker................

Holy Crap! No wonder they sound so wonderful:td: . I think I am going to do Clif Designs component fronts and coax rears along with a Design Elements 10" shallow mount. Not sure on the head unit yet.