Presumably you've tried them both ways round as the polarity matters?
It really shouldn't matter if they're CANBUS or not, but the second ones linked to look like an older (dimmer) type; I always buy SMD ones (usually yellow squares) as they're better.
My numberplate LED's failed a while back and it happened to get noticed while it was being (majorly) serviced so the garage (Fontain) put in standard bulbs. I haven't bothered replacing them and for a rear yellow numberplate it doesn't really matter so not sure if/when I will.
Did you see the comment in my wheels thread on SRS? Someone there said you might be interested in my PF Avus 18's for winter wheels when I free them up - not yet though........ 
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.).
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation".  (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one! 
Finally: gone, but not forgotten.....
1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course.  (internal dimming mirror added later)
1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer.
And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
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