The unit on the left is a stand-alone intercom unit. On the right, it looks to be a Bogen FM tuner.
Matt:
Looks like you need another mushroom board and a couple of brackets. Looks like a pair of 66M1-25 blocks might have fit into your plan better. I thought you were just going to run jumpers out of the KSU to the station blocks. Let me know if you need any more parts.
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