icom 7100

I am trying to figure out how to decode PDW messages using my Icom 7100 ham radio. The radio has various data ports in the back. I haven't been able to find any documentation on where the discriminator tap would be (if any exists)... Has anyone accomplished this yet?

I currently have a Yaesu 991 (not "a" version) which I really like, but recently I've got an itch to try something new and keep one as a backup radio. The Icom IC-7100 seems to be a bargain at less than $900, and it, like the Yaesu 991, covers VHF and UHF. I realize that the 7100 had a problem...