how to connect an Epson projector to a bluray player and a boombox?

[RevitHawk]

how to connect an Epson projector to a bluray player and a boombox?

 

[americanaudiophile]

You won't get an exact answer without model numbers.
Options would be BD to projector with HDMI. proj. audio out to boombox aux input.
BD to projector with HDMI. BD analog audio out to boombox aux input.
BD to HDMI input selector with audio extraction, selector to proj with HDMI
selector audio output to boombox aux input.