Blown rear speakers

so i blew my rear speaker today lol was wondering how long it would take til it happened, wondering what kind of speakers you guys/n gals would recommend. i was looking to get rockford fosgate 6x9's for the rear and then get the 6 1/2 component set for the front and custom fit them in. as for power would i need another amp to run them on...like another rockford fosgate p200.2 for the fronts since im gunna run the rears just off the stock wiring. im not very good with electrical but i now a bit. anyone know if this would work fine or should i run the rear speakers off an amp as well. any advice is welcome.

Thanks Cassibo