In Avantéix from Symphony II to RNS-D to RNS-E... a picture story... he meantions:
"the RNS-D and the RNS-E fit right in the opening of the Symphony II, w/o the need for any kind of modifications... that's indeed another story of you've got a Symphony I... "
how much more work is needed to install the RNS-E if you have a Symphony I unit? has anyone done it? are the extra steps just getting it to fit correctly or are the connections different?