Work in progress - Bluetooth speakers

Today I jumped back on this project that has been on pause for about a year :)Turning cheap defective desktop speakers into a set of wireless Bluetooth stereo speakers.Got the idea from this video from DiyPerks.

I'm trying to recycle as much as I can:Desktop speakers were defective and given to me by family,Bluetooth receivers are from old earbuds,Batteries come from and old powerbank,Charging module from old vapes (still need to figure out a few things about them, not sure I'll end up using those).The only thing I bought so far are amps for the audio output tu the speakers.

Any input or advice is welcome :)

I'll keep you updated with more details if anyone is interested