Mounting a 10" screen to a dash with no bezel... Help!

Hey, everyone! I'm attempting to find the best way to accomplish getting this screen on a 2007 Camry:
Attachment 68869
With my replacement screen, this is the end result I want to accomplish. One problem:

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The fabricator (whom was paid well for his services) did not give me a way to mount it securely!!

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So here's my question: without going back to the guy that did the work, is there an effective way for me to mount this display onto the fascia?? Bear in mind, it's a 10" screen; there was no bezel that came with it. The fabricator had to move the A/C controls down to accomodate the screen. And it looks beautiful!

All suggestions are welcome. Thanks in advance!!

The old bezel should have the snap into place pins. use plastic weld to glue new plastic pins onto the new bezel using the old original one as a guide to glue them into the proper position(be sure the pins are the same diameter as the ones on the original)...then let the the glue dry and cure for a day. The bezel should snap into place like the original:)

If they are the type that require screws...the same method applies, just be sure that they are plastic!!

When all else fails you can use things like Silicone (Which will come back off with effort) or hot glue (If you can get to the component but it dries fast and doesn't come back apart easily.)

Use hot glue, thats what i do for jobs like this.

i would use (black) silicon for that, also from the front

with some tape and an edge-tool you will get a nice result

but tape all of the visible screenarea, cause silicon may content vinegar which may damage plastic/rubber

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Thanks to everyone for their responses!
I decided to go with what appears to be the most popular, and use hot glue. When I understood what @BennY- was talking about, I then applies some black tape to the bottom of the screen to mask metal screen casing. It came out pretty well:

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Thanks again, everyone!