Advice for Rads LoR Match

Up until recently, I was planning on applying to a different specialty. I am now thinking of switching to Rads. I have 3 strong general/character letter of recommendations from Psych PD, Anesthesia and OBGYN.

I am wondering if one LoR from a DR/IR is enough to match. I have heard that for DR, LoRs are not as important since you are not expected to know radiology as a medical student.

More info: I have strong board scores (265) and honored most of my clinical rotations.

Any help is appreciated.