I installed neo sp, mp3 kit to my head unit and after I put everything back in, so sound no display, and also DSC is off.

What I did was took off head unit and unplugged all five connecters including the main power, and after i plug everything back in. I turn on the car, and the display is showing nothing but red light. My A/C is still working, but the whole audio system is gone.

I tried to turn off the battery and put it back on after 5 min, also check the fuses, and tried the everything again, unpluged the wires and and put them back on. But still, the display is not showing and no audio is coming out.

Please help me people!!!

 

DSC off is due to disconnecting the battery. Check your owners manual or search on here how to clear it.
As far as your head unit.... I don't know.

 

I am in a simular situation, except my fan blows and I can adjust the fan speed but no other climate adjustments can be made. I can adjust the radio through the controls on the steering wheel, but no buttons on the HU work and the display is just red.

Did you find the fix for your problem?