I got the installation from best buy .. but I want to bypass it and I dont Know wat to do. I know that u have 2 move the pin on the mute but I dont know what else .. thank u if u can help me

Move the mute and ground the mute and parking brake wires. Disconnect the parking brake wire from it's current location prior to grounding it.

http://avic411.com/forum/viewtopic.php?t=4670

how do i ground them... to where a metal part or what

Either that or to your ground wire on your harness. This has a better photo.

http://www.avic411.com/forum/viewtopic.php?t=7998

so let see if i got... so when i get my car i just need to swith the pins of the mute cable then groung the cable to a metal ... and then take the green cable and ground it also to a metal??

That's right. Either to metal or the ground wire like the pictue shows.

http://www.avic411.com/forum/viewtopic.php?t=7998

what about is best buy didn't used yellow and black wires do i plug get in and then ground it.. or do i just leave it loke that and groung only the green cable and thats it...

what about is best buy didn't used yellow and black wires do i plug get in and then ground it.. or do i just leave it loke that and groung only the green cable and thats it...

I'm afraid I don't understand what you're asking.

i went and look behind the radio and i notice that they didnt use the white connetor that has the mute mire.. they just used the black connecter that has the green connecter... they left the white connecter in the box.. im asking if i just plug it in and than ground it .. or what...??

You'll need to use the white connector. You need to relocate the yellow mute wire as shown in this post http://avic411.com/forum/viewtopic.php?t=4670 Once this has been done, ground the yellow mute wire. If The green parking brake wire is connected to the parking brake, you'll need to disconnect it, then ground it also.