Peugeot 406 sound system help

Friends, I decided to install a sound system on my vehicle, but I'm waiting for your help
I currently have the pioneer deh 5150 ub for the main unit and the rear
KENWOOD KFC-M6952A 500W 6X9 speaker
in front of my head
HERTZ DCX 165 16.5 speakers and
I think 1000 W Pioneer Champion series as bass
As an amp, I have no idea how much efficiency I can get from this system or what are your recommendations ...