This is a tale about Santa's newest helpers.
When the kids are in the car, the Elf back home on the Shelf can't spy on them.
But the Speaker Peekers can!       
 

Twas just days before Christmas and all through the land
Each child thought the season was unfolding as planned.
At the Pole, preparations all seemed to go well
But a worried St. Nicholas was dreading Noel.

"I'm no longer so sure who is naughty or nice!
I'll ask Mrs. Claus to provide more advice."
(For it was she who had told him to station his elves
In homes far and wide on mantles and shelves.)

"The kids," he explained, "have me in a pickle.
They spend so much time these days in a vehicle.
My home elves can't tell me who the good children are
When they can just misbehave when they're in the car!"

"Oh, Nick," she replied. "Let's remove any doubt.
Every car has a place where the music comes out.
Take the tiniest elves and make each one a peeker
Who can check on the children from behind the speaker!"

In Chevy! In Honda! In Ford and Toyota!
In anything that has four wheels and a mota!
From behind the dashboard of a Chrysler or Caddy,
Now an elf is observing who's good and who's bratty.

So, kids in the car: if you're acting selfish,
Behaving in ways that upset the Elfish,
They'll let Santa know of your fussin' and teasin'
UNLESS YOU DISTRACT THEM with Sounds of the Season.

Yes, the music of Christmas can create so much fun
That the best Speaker Peeker WON'T TELL what you've done.
So to keep your name on Santa's good list, by gosh,
Tell your parents to tune the car radio to WASH.