I usually try to follow the lighting patterns used from design. In the case of a chopper, depending on the model, I would try to use a hi-power light source directly behind the bubble (Say an old Hiller, of the low model Bells) pointing almost upwards, as centered on the console as possible. Easier to get away with this, if instead I have a divided windshield to work with.
In the case of the Bell 200 type aircraft, where the head and foot window panes are located, the most natural lighting is obtained by putting light sources relatively close to those areas.
Cables should not be a huge issue if the setup is well coordinated, and with a safety person handy you can route the cables towards common areas of the ship that are not visible from the camera POV and down to the ground via skids.
There ya have it, for whatever's worth.
It really depends on what effect you are trying to achieve.