Yun, yours is a late model right, past 92?
I'm thinking that the book says that 93- 96 Bose system did not need the antenna relay that the 90 - 92's use and that might be what you saw. I would think why change the harness that's already in stock, right? Just because they relocated the antenna relay/and or did away with the relay all together.
Sorry Bro, best I can come up with using my 90 FSM and my parts CD.
Tom