retrofitted power-folding mirrors, lights not working - does it need coding?

[David.X5]

01 X5 4.4 with Sport package - the bases of my side view mirrors were starting to corrode (black paint was flaking off...) and I was very happy to score a nice looking pair from ebay. They arrived and I was very happy to discover they were the power folding style. I tracked down a new switch that included the "folding" button and all is well with the folding. Mirrors look good, I can fold them on demand (which is frequent when the 4yo is in the car).

But, the "puddle lights" built into the mirrors are not working. They have new bulbs. I connected the appropriate wires inside the door and inside the mirror. Is this something I have to get coded to work?

Thanks, David