The other day my car was broken into and this part was under the passenger seat, it is blue and matches the blue interior, but I can't for the life of me figure out where it goes.

2 3/8" Widest
1 1/4" Tall

 

You should list the model year of the car or add it to the signature

From your other posts, looks like it is for a 93 Accord. The piece may be the plug cap for the center pillar trim piece cover.

 

It shows the signature for me while editing, but not after posting and I even checked the box for "Show your signature".

 

Your signature is showing now, so you must have figured it out...

 

Back to the topic though, I still haven't found where this part goes. There isn't a huge gaping hole anywhere.

 

Can you show the front of the item?

It really looks like something off the side of the seat or off the door panel, or the dashboard.

 

Sorry it took so long, but I found where the part went. It was the cover for the driver's side armrest (right side of driver's seat) and covers the bolt to remove the armrest. Now that it has come out once, it comes out often and is quite annoying.