Mazda RX-8 Workshop Manual page 3044

Inspection item
Audio unit/car-navigation unit connector
Wiring harness between audio unit/car-navigation unit terminal 1O and branch A
Wiring harness between audio unit/car-navigation unit terminal 1Q and branch A
Audio unit/car-navigation unit
C
With SIRIUS satellite radio system
Possible cause
Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between branch B and SIRIUS satellite radio unit
SIRIUS satellite radio unit malfunction
System wiring diagram