My trailer actually came equipped with a slide out storage tray in the rear compartment from the factory. I did not like it and removed it because it was too heavy, consumed a lot of the space in the compartment, and overall reduced the amount of useable storage space.
I threw it away.
"To compel a man to subsidize with his taxes the propagation of ideas which he disbelieves and abhors is sinful and tyrannical."-- Thomas Jefferson