Driver Rear Speaker Door No Audio

[slimmj0k3r]

Hey All,

So my driver side rear door speaker started having some white nose a while ago with no other audio and recently now is completely dead. Last night I pulled both door panels and swapped speakers. To my surprise the driver side speaker works on the passenger side which leads me to believe it's not a speaker issue. I pulled the amp (individual audio) last night, is there any way to test if that's faulty? I would purchase a new one but they're over $800 new and I can't seem to find any used. Don't want to buy a new amp if that isn't the issue.

Any ideas!?