Contour Enthusiasts Group Archives Forums Modifications Audio EXTERNAL AMP

Teh factory amp needs to be bypassed.
It can't accept the input voltage from
your other amp. Go to a good audio shop
and tell them you have a ford premium sound
package and that you need th amp bypass
harness. It hook the input into the factory
amp to the output to the speakers. That way
you use the wires behind your HU and it goes
to your speakers.