How to get started on Audio

Just curious, what do I need to get started on upgrading my system. I have a plain Jane 2019 SR.
What do I need to do and buy, if there is a forum for this please lead the way for me, I am sure this was discussed here

 

Here's one:

https://www.tacomaworld.com/threads...-tweeter-upgrade-holy-s.540548/#post-17457953

And...

https://www.tacomaworld.com/threads...peakers-in-your-3rd-gen.557032/#post-18175695


Another

https://www.tacomaworld.com/threads/premium-audio-upgrade-for-less-than-250.510424/#post-16031342

 

https://www.tacomaworld.com/threads/premium-audio-upgrade-for-less-than-250.510424/

 

Thanks, this will get me reading.................. appreciate

 

Get your wallet out. No one stops at the $250 upgrade.