Rear speaker issues

So I replaced my front door speakers and rear deck speakers with Kicker 46CSC674 speakers (Kicker 46CSC674)
As well as my Sub with a Kicker 48CWR84 (Kicker 48CWR84)
These are supposed to work according to crutchfield. My front speakers work great. But the rear deck speakers and sub are super quiet.
Fade, balance and connections are all solid. Anyone have any ideas why the rear speakers and sub are so quiet?
Thanks in advance