Last time I checked (which I admit was a few years back) it was no one, but IIRC some people were able to persuade a 2G triple gauge pod to fit. You might just go measure all the dimensions of your pillar and have someone who sells the pods find one that's pretty close, and a heat gun should take care of the rest.
Hmm, I kinda remember someone saying that an Accord triple pillar fit, but maybe not. The reason the Galant triple pods were made of unobtanium was due to the electric seatbelts. If you ditch those for the '89 manual belt setup, the full pillar is able to be used. Otherwise the belt will smack into the top.