Thanks for your reply. I'm not sure about a metal tab connected to ground. This is the amp. Best I could tell I think this is the same one too?

If you’re looking for low budget, I’ve been using this TPA3116 amp for a few months and am pleased with it: https://www.amazon.com/dp/B07BKYL3GC/

Honestly, any TPA3116 amp is going to be sufficient for use with Bluetooth because encoding losses mean you don’t need absolute audio fidelity from the amp. Also, I would suggest posting over at diyaudio.com. They have always been super supportive and informative, at all budgets