How do I turn this old tv in to an audio amp?

I've seen it done before so I know it's possible but I just don't know exactly where I need to attach the Power in, Audio in, and speakers out... if you could help me and show me specifically where on the circuit board I need to solder my wires to so I can get this to work and maybe possibly boost it so it's louder? I appreciate it! sorry if I'm kind of slow... I'm working with improvise tools and material and have zero experience with electronics. I'm be sure to attach some photos so you can point to the locations specifically.

this is the whole board

this is the audio chip i belive TDA9859 I have the data sheet too

here the back section of the audio chip

Here the data sheet link: https://www.alldatasheet.com/datasheet-p...