Phenryiv1's spacers fitted perfectly
And thank you Pkenryiv1 for recommending the Metra 72-8104 speaker wire harness ... it connects perfectly into the factory plug.
Here are a couple of pics from my install.
I used the clamps to hold the speaker in place while I drilled the holes to mount the speaker to the spacer.
I used this to form the gaskets between the spacer and the door and the speaker and the panel. I'm sure there are better options on the market but this stuff is cheap and easily found in HD or lowes.
All the screws are stainless-steel.
