A/C Delete, is there a cover?

[robotman]

I have removed most of the non functioning parts of the a/c system and i have to replace the stereo so i pulled the a/c duct down. Is there a cover that can replace the under dash duct system?
And what do these numbers mean under the duct?

[James Brown]

the numbers are your VIN number (cool place to check a car if it has been tampered with). I think you have to put the vent back on sans all the wires and hoses.

[Mysterytrain]

you need the right and left knee pads to cover the bottom edge of the dash.