Por favor necesito arreglar la hora, ¿cómo se hace? Gracias Manuel

Man, so glad to freakin know how to set the clock. You must hold the select button for 2 seconds and then proceed with setting the time.

Okay I called JVC for this KD-S13 because the details here weren't very specific. You press and hold SEL (select) for two seconds until the MENU comes up. Let go of SEL. Press the left and right arrows on the side of the radio, where you normally change the station or skip tracks. There's all sorts of different menus, including Hour and Minute to change time (which is lame you have to confirm hour/minute, then go back to hour/minute to do both) as well as the annoying DEMO function. Just turn the knob to the left to turn it off while you are in the menu. For each function you change to what you want, you press SEL again to set it.

they dont have a pause and it doesnt fast forward or rewind just change the songs freakin lame...

Thanks! it was very helpful! I couldn't find those instructions on the manual... About the last question, the ATT button is similar to a "mute", although the volume just lowers almost to 0 without muting completely.

Hold SEL Button Select item with up and down rectangular button on the right side of radio Set or adjust with volume knob Push SEL when finished

Thanks for the help with my car clock. What is the ATT for on the stereo? Is that for the sub.