Just finished my install. Very nice DIY. I used the ashtray light which was very easy to access
First run the wires completely before tying them down. There is no right or wrong way
Then solder the wires, black goes to brown (-, ground, or earth for those in Europe)
I chose to pop a hole in my center console box. I didn't know ho wretched this picture was until I downloaded it, but there you are
The hole the power cable comes out of will eventually have a phone charger coming out of it, and Fred, I'd like to modify your power box (nice as it is) by relocating the pot resistor from the box to another spot. I'm thinking of mounting the new pot resistor inside the center console box so only a switch similar to the wiper delay switch shows and running wires to the PCB. Is there any reason that would not work?
And here is a picture with the ocean in the background. the weather isn't cooperating, but there is a cruise ship out the windscreen to make up for it.