Can anyone tell me how to get this new passenger side door bumper plug?

Can you expand on or clarify your question?

 

I am trying to replace the small rubber door plug. I have a attached a photo. I tried a little silicone spray and 20W oil without any success.
 
 

Those plugs are a PITA to get in.  I tore a few of them trying different methods only to have them break and fall out again.

 

The best way that I found is to use some sort of lubricant (silicone should be OK) and then use something like a chopstick to try and work it in.  I actually use orangewood sticks that I got from my wife.  She uses them for doing nails and they are great for chores like this as well as cleaning.  They are very soft so they will not damage your paint either and they are also tapered at then ends so helpful in this type of job.  You can get a bag of 100 orangewood sticks at normal beauty supply places for a couple of dollars.

 

Hope that helps.

 

Mike.

Thanks Mike, I'll give it a try. Rob

I popped mine in with a small flathead screwdriver.  In a not too rough fashion, I stuffed in one side of the base fitting and then worked around till it all went in.  Should only take a second.  Just be careful not to push in so much as to slice the stem.