Created something SMALL to Integrate a Ultrasound Sensor and positioning capabilties.
I had only few space left, without large angular moving capabilties.
So I integrated all into the head.
I used Servo-Cable to get Supply-Trigger-Echo Pins out of the head, and I spliced the ground into the Servo Ground connection (brown on mine).
Guide the wires first to the Top of the head, then guide it vertically down through the holes of the neck.
Hotmelt all together (after functional check) to prevent the wires from Jamming the head turning.
Works nice for me.