Possible to transfer new number plate to 2nd hand car?

Just won the bid for a new number plate on JPJ, which I’m supposed to “park” on a new vehicle within 12 months.

I plan to get a 2nd hand car in the next 2-3 years, which would have been registered locally (i.e. not new and not recon)

Some have said I just need to park the new plate on a new motor, and I would be able to transfer the number over to the 2nd hand car once I buy it.

However, a runner I spoke to said I won’t be able to transfer the new number to a vehicle that has already been registered (i.e. the 2nd hand car in question)

Is this possible?