The gain is maxed as received from store, I left it alone. I did tapped the rear speakers. Do you know what would be the color code for the front speakers? I will try tapping the front speakers and see if that works.

Thanks for you help!

 

There are diagrams all over the internet......

Turn the gain down, and tune the subwoofer before you put the stereo back in so you can adjust the gain as well as adjust the settings at your Subwoofer Amp...

If that still doesn't work to your liking you might have to tap the LOC after the amp.