I recently hooked up my kenwood kdc-mp538u......and theres nothing I can hear it turning on but theres no display or anything its just black....what should I do??

Car Radio Constant 12V+ Wire: Blue/White
Car Radio Switched 12V+ Wire: Yellow/Red
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Black
Car Radio Dimmer Wire: N/A
Car Radio Power Antenna Trigger Wire: N/A
Car Radio Amplifier Turn On Trigger Wire: N/A
Front Speakers Size: 6 1/2?
Front Speakers Location: Doors
Left Front Speaker Wire (+): Blue/Green
Left Front Speaker Wire (-): Gray/Black
Right Front Speaker Wire (+): Red/Green
Right Front Speaker Wire (-): Brown/Black
Rear Speakers Size: 6 1/2?
Rear Speakers Location: Rear Deck
Left Rear Speaker Wire (+): Blue/Yellow
Left Rear Speaker Wire (-): Gray/White
Right Rear Speaker Wire (+): Red/Yellow
Right Rear Speaker Wire (-): Brown/White

Please traslate this; quita el modulo de radiofrecuencia (Radio module) ahi es en donde se guarda el codigo de seguridad y de protecion. quitalo y volvera a funcionar. see ya!

Hit the 'fnc' button (function) turn the control knob until you see clock adjust in the display. Press and hold the control knob until the time display blinks. To select what you want to adjust push the control knob to the right or left to select minutes hours. Push the knob up or down to make the adjustments. Exit the clock adjust function by pressing the 'fnc' button again. Here's a link to your owners manual for future problems. Have a great day and thanks for using fixya!

http://inform3.kenwoodusa.com/Manuals/kdcx592.pdf

the problem is more than likely bad solder connections on the surface mount resistors located on the right front of the deck itself.

i had the same problem as you, i own a 98 ford escort, and i couldnt find a wiring diagram that matched the ones in my car . i managed to connect the constant (red) and switched (yellow) to the wires in the car but i had made a mistake with the ground (black) . so i re connected it to where its suppose to go so now the head unit actually lights up and turns on.

now i have another problem because my head unit doesnt stay on for any longer than 1 mintute

go to kenwood web site download and print hope this helps

My issue was that I didn't have the blue "amp" wire hooked up and I had a factory amp.

I have had the same problem, my problem was that i accidentaly hooked up the constant wire to the switched, and the switched to the constant, causing it to turn off completely, resetting everything. So if this is the problem then just switch the wires in the back of thew head unit, should be the fatter yellow wire, and the fatter red wire
hope this helps

Check your ground wire

They dont work with classic ipod for direct ipod connection, also try updateing the firmware in your ipod this is a common problem, deck looks sweet tho eh?