Troubleshooting Multi Amp Setup

I have installed 3 Amplifiers and a subwoofer in my 2003 Honda Civic. I had previously used a one amp, one sub setup in my old car, but i had an interest in keeping my inside speakers performing as well as my subwoofer. Here are my symptoms.

Subwoofer shuts off during play. I Noticed the amp was very hot. i forgot the model number but it is a 400w x 1 @ 4 ohm bridged, 2 ch amp. It always got hot but never shut off on me before i installed the other two amplifiers.

I used that amps Remote section to relay the remote signal to the other two amps. Now i think that is the problem but i didnt get a chance to tackle at it yet.

The pioneer amp is driving a 12" Alpine SWR-1241D, Dual Voice Coil wired at 4 ohms, 300w RMS @ 4ohms. Amp is bridged to this speaker.

The other two amps are both Rockford Fosgate p3002, 75w x 2 @ 4ohms. One amp is driving the 2, 6 1/4 inch, Infinity Kappa, front speakers which take 75w RMS @ 4ohms each. The second amp is driving the rear stock 6x9's which take 15w RMS @ 4ohms. The rear speakers are temporary.

One thing i noticed, i am using a 2 farad Lightning audio capacitor (led display). This cap does not have a remote turn on lead. It stays illuminated. Now im unsure if that is drawing from my battery constantly enough for me to be worried.

Yesterday, my subwoofer shut off. So i shut off the head deck so i can work on it tonight. But this morning my car is dead. I didnt get to check the alternator or the battery. Car made no clicking, no lights flickering. Nothing. Here is a drawing i tried my best to piece together of my setup. My grounds are very secure to the frame of the car which i sanded vigorously. Connections are tight. Thanks for your help.