Okay I took it to get it installed today and I have a few questions now.

They didn't use the 10 gauge wire to connect the HU to the battery. I was thinking maybe they used one of their own...is there any way to check and see if they did or not?

Also, I'm not sure if they bypassed the amp or not...is there some way to check that?

Lastly, there's now a bit of noise when I'm listening to CDs. It's kind of a soft static type noise that's only audible when the music is soft like in intros to songs. Is there something that can be done to eliminate this?

Thanks.