Yes. You can connect it to the block or the frame of the vehicle.
The radio amp on a 99 VW Jetta is located under the driver side dash. It is in the fuse number 42 slot.
How do i check the transmission fluid in a manual 99 Hyundai Accent?
The factory amp is located in the rear of the truck right behind the factory sub,
looking for the correct timing marks
5
It protects a circuit.
20w-40 20w-50
Yes, from what I hear from audio specialists there is a factory amp either under the dash or drivers seat.
some models have a built in amp under the dash on the passenger side i bypassed it with a wiring kit from crutchfield
behind the glove box
Its under the rear passenger seat.......