Hello,
I just did this a few weeks ago to my taurus.
I had a pair of rockfordfosgate componet speakers lying around that were in my explorer when I had it.
At first I installed the 5.25 components with an adapter plate, they sounded like s##t so I put the stock speakers back in and just put in the tweets, It actually sounds pretty good.by the way I used the crossover that came with the speakers.
BUD