[pete-p]

Originally Posted by steamship

You must have done it wrong if you didn't even scrape a knuckle. If a job is worth doing right, it's worth bleeding for.

I did wonder, I usually drop something somewhere I can't reach or manage to draw blood but not this time!

Originally Posted by HPsauce

Excellent, those little details are what we need.

If I tackle it and find a better way I'll explain it here.

Well nuts are a handy device, especially with the electrolytic corrosion issues we have to beware of. I used them to secure my reversing camera.

The well nut made it much easier I'm sure and there's no risk of corrosion as you say, I used a nylon washer supplied with the nut just to be sure. I think it would be fair to say the hole is almost directly below the bend of the A/C pipes, the orange grommet was my main guide though.