I concur. A head unit in the $150-200 range would be able to power those speakers comfortably, say in the 20-25 watt range.
You can then add an amp later.
A wise man once said, "Garbage in, garbage out." The stock stereo is garbage. No sense in amplifying trash.


Ride: 2000 T-red SE
Beats: Kenwood 316S, Alpine MRF200, Orion XTR 6.2, Coustic 400SE
Mods: CTA, Magnaflow exhaust, SVT Instrument cluster, Knuaberized doors, side markers, F***ed up painted headlights.