Bluetooth not connecting for BT Audio Music

Hi everyone. I joined Priuschat long ago, but haven't posted in quite a while. Still driving my Prius 2010 Gen 3 with solar option. Recently upgraded to an iPhone 13, and I can't get my BT audio to work. When I try to connect, it seems to be looking for an older iPhone (with a different name than my new one) and when it can't find it, not only does it tell me so, but it disconnects my phone connection with my new phone as well. Not sure if it's an incompatibility issue, or a user-not-knowing-what-he's-doing issue!

I'm also wondering if I should simply replace the OEM nav unit with a new one that features better connectivity (and Car Play) and current maps. I can't see spending $300 to upgrade my maps through the dealership if I could put that money towards a more fully-featured nav/audio unit. So, if any of you have any recommendations for specific units that work with my model of Prius (backup camera, no parking assist feature), that would be great too.

 

Update: I thought maybe if I deleted all personal data from the audio/nav system it might work. And it did. So going into the general Setup and choosing the "delete all personal data" option allowed me to remove the prior connection to an older iphone and now, after pairing my new iPhone, my bluetooth audio works. Strangely, when first paired, the sound was playing at like 1/4th the speed it should have been! I turned it all off, restarted, and everything seems fine now.

Still wondering about an upgrade that has easily upgradable maps and better audio features!!!