Yup, the culprit is the factory amp as it wasn't bypassed. Use the search function and type in "amp bypass" for a multitude of information.

It's a weekly topic.


1999 Ford Contour SVT #900/2760 (SOLD) 2005 Mazda 6s 2003.5 Mazdaspeed Protege 1998 Ford Ranger 4x4