Need some factory audio help!

So here's the situation. I have a 17 with the premium JBL HU and I've had zero issues until like 5 days ago. I have a JL fix86 hooked up after the factory amp but it's reporting no signal which means nothing is coming from the factory speaker wires out of the JBL amp. At first I thought it was a loose connection bc all audio would cut out but it came back for like 5 min then cut back out. Jiggled some wires around/checked connections and got nothing. So then I read it could be a software issue so I did the update I found on here and got nothing. And today I was messing with the JBL amp and noticed there's zero power coming from it to power the speakers but if I unplugged the super little wire connector and plugged it back it I would get audio for like a few min then it would cut back out. I was able to do that like 3 times but after that, no more. It's almost like the amp is going into protection mode but I doubt it has that. I know how to do a lot but actually testing the resistors and shit inside the amp would be some new territory for me. Plus that amp isn't just your normal amp so I doubt I could find much on how to test it especially if I took it out to do inside.
I'm assuming the amp has shit out on me but open to some suggestion!

Could I purchase a similar amp like out of a Camry with the JBL(connections looked almost the same and a lot cheaper). I only need the amp to send the JL Fix86 some signal.

Would I be able to purchase a non JBL HU since I already have my own amp and speaker wires ran?

 

https://www.tacomaworld.com/forums/audio-video.12/

 

Sound like the JL Fix86 fried the JBL amp.

 

the JL fix doesn't do anything but take audio signal from the factory speaker wires and I'd think if that was the cause it would of happened before now. i have a amp coming from someone on here so hopefully that fixes it.