They have 6x8's in each of the doors, but they are acualty 6x8 plates with Alpine five and a quarter mid woofers and a separate tweeter, under the back baffle board there is two Alpine 6x8's woofers on a low pass frequency indepently amplified, also there is two three and a half inch inch speakers in the center console.
6x8
6x9 2ohms for best results
That's Right!!
by taking door panel off
6.5" speakers,4dr and 2dr
doors are 6.5 rear speakers are 4 by 9
P235/50r17
6.5inches 6.5inches
The 2004 Lincoln LS Owner Guide shows : " Headlamp Low Beam ( HID ) D2R "
size is 12/150
Your moms size
To change the rear speakers in a Lincoln LS, first, remove the rear seat to access the speaker location. Then, detach the speaker covers or grilles, usually by prying them off carefully. Disconnect the old speakers by removing the screws and unplugging the wiring harness, and then install the new speakers by reversing the process. Finally, test the speakers to ensure they are working before reassembling the seat and covers.