How do i connect aftermarket door speakers?

[DiscoPol]

I think that the door speaker will use everything, as in full range and the original tweeter up top will be getting just the high end signals thanks to the capacitor fitted in line on its feed.

but its just guess work im afraid as i said though the door speakers sound much better now they have been upgraded, much clearer through the whole range as far as my ears can tell.

[mjb]

If it's a JBL amplified setup, all the speakers are individually wired, otherwise I ain't got a clue