Ive got a import classic wagon which has its speakers built into a spacer. The speakers are more or less ready for the bin (damaged) but the spacer I want to keep. The only problem is that they look they have been bonded together to the spacer. The are not like the front speakers which have 3 small screws which allow you to remove the speaker from the spacer.

Has anyone successfully separated the rear speakers from the spacer.
How did you do it without damaging the spacer.