I'm alive! house didn't burn down. There was silicone on the connection to the subwoofer which is what threw me off. Once I realized what I was actually looking at the amp was switched out and all is working now.

Now for my upgrades to arrive! Moving up to M80's, QS8's and VP160 after 15 years of M60 V2 greatness. Y'all better be telling the truth about the V4 quality updates!

What does this button do?