My head unit is a Pioneer AVH-X391BHS

it can output 50W per channel.

I think I will upgrade my blown 6.5" door speakers to these mtx terminators https://www.crutchfield.com/p_236TERM6S/MTX-Terminator6S.html.

These should work well with the existing component speakers. I will have to see how much work is required to use the tweeters from the terminators in the dash of my car. Currently, crutchfield is saying that some drilling may be required.