u/Krankdank2L8

Any ideas on how to open this and get the battery out?
I only find info on the other key style for the other models
09 SI Sedan*
TYIA

Original stereo was broken inside,

Found an OEM SI Radio & replaced it, put the code in & all the ports work just don’t have any audio?

Has anyone had this problem?

Fuses have been checked, (did I miss one?)

Was told the speakers did work.

I had this problem in a 2013 Accord when I replaced it with an OEM from EBay & at first nothing but one day a few weeks later it magically started working?

Is it recognizing it or again, did I miss something?