https://www.gmforum.com/audio-afterm...-2-0-a-297777/

https://www.gmforum.com/audio-afterm...-carlo-300069/
https://www.gmforum.com/audio-afterm...-285684/page3/

lots of people on this site have done what you want to do, someone will be able to help if you get hungup. what you want is full range speakers and a matching amp. budget will dictate what you get really. sonic electronics and crutchfield, amazon are good places to get stuff. i got polk db's they are reasonable sound great with a 400w peak amp(100 per ch)