It means it has a built in speaker inside the iPod..
The diaphragm.
it is somewhere inside it
How about this: What's inside the box? How Sound Wave Intensity changes in a speaker box to outside.
From inside the trunk.
The headphone outlet will not have enough power to make a speaker work unless it is self powered. This means the speaker has anamplifier inside the case.
Speaker cable can have an insulator that could be any color. The wire inside is typically silver, copper or gold colored.
It is inside the body computer.
You have to do it from the inside of the trunk.
The magnet is part of the 'motor' of the sub. The coil inside the magnet has alternating current running through it. The coil acts as an electromagnet and pulls itself up or pushes itself down moving the cone of the speaker. The bigger the magnet, the stronger the magnetic field inside the speaker where the coil is.
you need to remove the door skins first there is a screw on the inside of the speaker cover that holds it on.
The size for a 2003 Saab front door speaker are 6.5 inches. There is room inside the door to allow for a larger speaker size.