We have a 2018 RTL. I asked the same basic question here:
https://www.spyderlovers.com/forums...nnect-with-Sena-20s-Why&p=1402468#post1402468
I can't really think of much that I can't do on the phone that the BRP connect does. Through the Sena 20S headsets and the phone I have I can control the music, apps, telephone, texting, connect with 8 other headsets,etc by voice. Plus my wife can control her own phone, listen to her own music, make her own phone calls and still communicate with the intercom. I have to set up my GPS, a Garmin Nuvi 1450, ahead of time or at a stop, but I can control Google Maps, Waze and such on the phone by voice if I need to. I did the same thing with our other trike, a 2004 Goldwing GL1800. The only thing I miss from the 'Wing sound system, and it isn't included on the Spyder radio, is the built in NOAA weather radio.