Placed 4 1/2" holes in the Bagage coompartment bulkheads for the Headset/Mic jacks. I requested long wore runs in the Harness from Stein for these jacks to be place here. You must make sure you use the fabric washers (Not supplied) so that the jacks do not ground on the aircraft. One of the washers is flat and the other has a nub sticking up around the hole so that it can fit inside the 1/2" hole. When you tighten the nut it is suppose to squish inside the hole and prevent grounding. I tested this with a ohm meter and everything looks good. No ground at the jacks.
This position should keep the headset cords out of the front seats.