This question is a two parter.
Part one:
I have a m2-atx psu and I was looking into wiring the ign delay to the amp. I see there are two pins for this, I was assuming it would be just one spot for a wire to go from j6 (jumper looking deal location) to the amp. Am I supposed to ground one pin and wire the other to the ignition line on my amp?

Second question:
I want to do this not because there is a loud thump when I start my car (there isn't), but because when I start my car there is a loud noise coming from my speaker that lasts until the computer is completely started (20-40 seconds). This can get quite annoying. Will this fix that, or will the problem persist?