Factory speakers are trash, IMHO. Very light, practically no magnets, real cheap. I replaced mine with Focal Integration ISC-165, one Focal speaker probably weighs more than all four factory speakers combined. I paired them to a Rockford Fosgate amp, which can deliver the 70W/channel they need. If you want to stick with headunit amp, you might want to look for speakers under 50W.
I replaced all four 6.5” factory speakers in December with Kicker speakers (link to speakers). So far I’m super happy with them. I’m running the original factory stereo with factory subwoofer and the Rear Entertainment System.