Hey i have new pioneer 7600 series HU. its the one with the dolphins and spaceship that fly around on the screen. anyways there is a wire for cellphone something..which it mutes the cd player/radio when the phone rings..
how does that work and how cna i hook my cell up to it? or can i?

 

it takes a ground signal and mutes the audio... or on some brands, it also pauses the CD. You usually need a permanant mount hands free kit for your particuluar phone, they usually give you a radio mute output to hook to that wire. If you have a Motorola phone, I have a hands free system I am selling, all it needs is a cradle for your specific phone.