Honda could find you through the RTA if they wanted to.
I received a recall in the mail last year for a 1997 Ford Explorer that I bought at the auctions.
They had to replace the wiring for the cruise control because some cars had caught on fire.
I bought my CL9 as a repairable write-off so I have no books or cards for it, but it is registered and therefore it is in the system, so Honda should come to me.