I can't see the point of such a thing. The whole point of the opening the Empeg leaves after it's removed it to give possible burgulars the message : "Hey, nothing to steal here, so don't bother breaking my windows or forcing my locks".
That's IMHO of course.

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Riocar 80gig S/N : 010101580 red
Riocar 80gig (010102106) - backup