Bought 'em and installed 'em:
Mazda part#: N123-V7-050F (Mazda list: $115.00, I got 'em for $93.75 from dealer parts)
I liked having light in footwells on my NB (for me, helps finding stuff that slips off passenger seat on way to meeting once you've parked in dark underground garage).
The Moss lights snapped neatly into the NB console blanking plugs. There are no such plugs on the NC, so you dbl-stick tape them to a flat place below the glove box and, on driver's side, to the chassis stay next to console.
Note: If you have a Mazda car alarm, the alarm box is mounted *right* where the instructions tell you to mount the light unit. Alarm Box also completely covers up hole in chassis stay where you're instructed to attach grounding wire (with "Tightening torque: 6.9~9.8 N.m", BTW - make sure you have a *very* small torque wrentch!). Solutions to these problems will present themselves.
Instead of T-tapping to the (sorta) convenient factory interior light connector in the NB, you T-tap the NC lights to Instrument-pack harness near plugs for instrument-pack. So you gotta take all that stuff apart. Use straightened coathanger to route lamp to passenger side, like NB.
The NC lights have those red 'condoms' on them so they match the instrument/radio lights. If you need more light, you can just remove them. They also come with a timer that leaves them on after you close door for about 10 seconds.
Took me about 4 hours going really slow (beer break, talk breaks, phone breaks).
-- Steve McMahon Green '07 Sport