okay, so before tackling the install on this beast (which turned out to be not much worse than a standard install -- 4 extra wires -- yes 4, because of the bypass) i decided to read all the manuals. a six pack and a few hours later, i came across this:
The following functions are not available in the SIR-PNR1:
-Selecting team for game alert
-Displaying game information
-Using the song alert function
-Using the direct traffic announcement function
Chapter 13, Page 131
Well, thanks for all the replies. Now I know what I need.