2015 rear door speakers stopped

Hey guys I have had a 12 in sub and and a amp hooked up in my 2015 tundra sr5 trd 4×4 for a month r so now well I was trying out another amp yesterday and when I tried to hook the amp that has been in it I noticed my rear door speakers no longer were working can someone please let me know what I've done wrong

 

That will be impossible without you telling us more about your system. Your 12" sub (and presumably your amp as well) are not stock, so what else is stock vs. not stock in your system? What amps are hooked up to which speakers?

 

I’m guessing the wiring runs to your battery under the hood? My aftermarket amplifier was randomly cutting out a few months ago and it turns out a wire under the hood came loose...