Rav4 radio after 7 years is looping through the boot cycle.
I used the repair service from this site https://robertsaudio.com/services/
You can search for them on ebay. The diagnostic fee was $35. Whatever they diagnosed and you don’t want to fix, they will ship it back at their shipping cost.
Costs:
$35 ebay diagnostic
$24 shipping to them
$500 for the unit with entune navigation