Demon eye how to - half inch split loom, lots of solder, heatshrink, blade connectors for days, electrical tape... and eyes on the tips of your fingers.
In one of the other threads someone pointed out that in the drivers wheel well there's an unused hole with sealing grommet next to the hood latch cable exit point - take off front tire and try to take it out towards you... i couldn't so I just pushed like hell, it'll fell inside. Go hunting behind the carpet for a while. Eventually you'll get it - if you have 1/2" split loom, cut out the centre cap of that grommet
Once trimmed open just enough for the loom to pass through, epoxy it in place so about 8 inches will be in the foot well with the rest sticking in to the wheel well.
If you've ever done wiring before, you know how to fish - key note, if you're going to fish, tape the loom keeping in mind the girth of any wire bundle to go through it... I didn't and ended up just fingering the connectors through the hole and re-looming the line after the fact
Push thingy in the other thingy until it looks like this - I used the closed end of a combination wrench to apply even pressure the whole way round.
I really need to get my new rotors in lol
wrap up the doodle to feed your noodle
View my fuel log 2015 Micra SV automatic: 7.1 L/100 km ... 39.9 mpg (Imp) ... 14.1 km/L ... 33.3 mpg (US) ...