A body Front speaker location?
Looks good james, i have contemplated doing the same but find some more shallow mount 5.25" speakers so as not to have to relocate the window washer and the high beam switch.
back to the dash mount twin 3.5s though, would you have to remove the dash with a car (68 dart) fitted with am radio and aircon? i had a play the other day and it doesnt look like an easy job to get the old out and the new in.
I will post a pic up later of what i have done with the rear parcel shelf.