Just installed the Z1 in my 2002 maxima, i kept the bose speakers and amp, i used the Peripheral sven4 interface to retain it. Everything works properly, but nothing happens when i press the volume buttons. I have sound but it is just very low. It doesn't even disply that the volume level is moving up and down. Any ideas? Thanks

Where did you purchase the Z1 from?

i bought it off a friend and it was working fine just a few minutes before puling it out.

did you try resetting the system? Get a pen and poke the little reset button and see if that works for you.

thanks for the help guys, i dotn know much about car audio, but my friend fixed it, i believe he said the mute wire was in the wrong place or grounded or something like that....