I saved that pic cause my yard has a early 90s so if I can get time I'll go get it.You must be registered for see images attach
Heres a 1990 Oldsmobile 88 chime module, its a green module. I post this because I have a 1990 olds 88 that Im parting and I had to replace the OE chime module back in HS to get my key in ignition and headlamps on chime LOL (too many dead batterys)
I would assume the one you found is similar in function
EDIT:
WARNING CHIME SOUNDS WHEN IT SHOULD NOT
Open wire to ignition light switch. Open ground wire to chime module. Malfunctioning am
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That is the diag for when chimes are going off when it should not, so I assume power with the relevant ground removed will chime the module. I assume this is how most of those work
And I see it has turn sig input. So does it make a nice ding for that or is it an early system of the dinger when the turn signal is left on