so i read on this forum that moving and grounding the mute wire mutes the subwoofer preout...is this true cause i just install my amp and subs and the signal is very muted coming out...i really don't want to loose the bypass since pulling over to plan a route would suck...any ideas

You don't ground the mute wire, you move it to the un-used pin. Check the how-to.

um...check out the sticky's you move the mute wire then ground it with the parking brake and radio ground

here you go http://www.avic411.com/forum/viewtopic.php?t=4670

Bypass has nothing to do with the subwoofer out. Zero

that is refreshing to hear...do you think it could be a bad rca becuase i know all the connections are right unless the amp or both subs were damaged in shippin

Be sure you have the amp connected to the rca labeled subwoofer. Also check the subwoofer adjustments under the sound menu.