9-5 adapter harness

I've been told by a few people who have 9-5's, that certain years (not sure which) didn't come with the "regular" cd changer plug; Saab made an adapter though, that converts those cars from a 2-plug harness into the single plug connector.

eEuroParts sells them for less than $12.

I wish I could tell you which years need this cable, but it shouldn't be too hard to figure out if your 9-5 has 2 connectors or 1 under the rear carpet.