Simple stereo

I've used two old speakers that were in my car (may she rest in peace). Any speakers of 10cm of diameter should do the job. Also I've used this amplifier found on Amazon which works perfectly: https://www.amazon.it/gp/product/B01DDKP8IW/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 . It has also a port for a subwoofer and another speaker so I'm planning to do the housing for them in the future.. In the models the amplifier holder file is if you are planning to build the housing and it's just to su