Hi everyone so recently the remote control for my BOSE 300 SoundBar broke and im wondering if there's any other way to attach

[snwfox1652]

Connecting tv remote to soundbar

 

[americanaudiophile]

If your have the soundbar connected to the HDMI-ARC output of the TV and have CEC turned on in the TV menu then the TV remote might adjust the volume of the Bose.
It won't affect the volume of the Bose when you use it with other sources so I think getting a replacement Bose remote will be the simplest solution. You could get a Logitech Harmony remote if you want a single remote to operate the entire system.