The user manual doesn't say anything about double beep when remote battery is low, but it does say this:
A message will appear in the information display when the remote control battery is low. See Information Messages (page 88).
+1
- If you fry wiring because you pulled to much current on the supply wiring, it won't be covered.
- If you cause damage to the audio system because your amp input impedance doesn't match the audio system output impedance (very, very unlikely), it won't be covered.
- If you blow a...