Run test for current draw and check battery condition.
Removed and re installed radio to check connectors. Problem appears to be in MOST network between module and radio. May be fiber optics concern, which suggest taking the vehicle for further diagnostics to Volvo dealer -Keystone Volvo (Berwyn), Wynn Volvo (Norristown) or Stillman Volvo (West Chester).
Replace Key Fob Battery N/C
NINA Z. gave our service a 5 star review on 7/11/2019