Bose Acoustic Wave Radio CD3000

[RandFM1213]

Is it possible to hook up additional Bose Acoustic Wave Radio CD3000's to each other?

 

[USAFRet]

Is it possible to hook up additional Bose Acoustic Wave Radio CD3000's to each other?

Maybe.
Page 14 of the user manual: https://www.bose.com/content/dam/Bose_DAM/Web/consumer_electronics/global/products/speakers/acoustic_wave_music_system_model_CD3000/pdf/owg_en_cd3000.pdf

shows LINE OUT jacks and
AUX IN jacks.

LINE OUT from one to AUX IN to the other.