Jumphiggggg

Hey guys! 07 here. So today I installed a Pioneer AVH-X4700BS into the car and the HVAC buttons worked after I installed it. I forgot to put one of the screws back when installing the head unit so I unplugged the HVAC loom and put the screw back and when I plugged it back in, the HVAC buttons stopped working. The time will show but the buttons won't work. Can't turn on the blower fans, can't change the time, can't check the air temp, but the hazards work just fine. The A/C fuse inside the car is fine. So any thoughts

Edit: Solved the issue, overlook a fuse in slot #7 whoops... oh well easy fix.