This is a repository for Dell 7000 Hackintosh running High Sierra 10.13.4

Graphics/Display
Audio (Headphones+Speakers)-ALC256- Auto-Switch to Headphones when connected
Battery/Power Management/Over-Charge Protection
Wi-Fi
Trackpad with Gesture Support (Only Few)
Siri Working perfectly fine
Bluetooth
Camera
Ethernet
All USB ports Working

If sound is audible through speakers but not through headphone 3.5mm jack. Open the ALCPlugFix and double-click to run the Install.command.

It will fix the headphone sound issue and you will be able to use it with a headphone+mic.