Sony CDX-MP450X Primary User Manual (English, Español, Français) Operating Instructions Manual page 28

Radio reception
Problem
Preset tuning is not possible.
The stations cannot be received.
The sound is hampered by
noises.
Automatic tuning is not
possible.
The "ST" indication flashes.
A program broadcast in stereo
is heard in monaural.
If the above-mentioned solutions do not help improve the situation, consult your nearest Sony
dealer.
28
Cause/Solution
•Store the correct frequency in the memory.
•The broadcast signal is too weak.
Connect a power antenna control lead (blue) or accessory
power supply lead (red) to the power supply lead of a car's
antenna booster. (Only when your car has built-in FM/AM
antenna in the rear/side glass).
The broadcast signal is too weak.
t Use manual tuning.
•Tune in the frequency accurately.
•The broadcast signal is too weak.
t Set to the MONO mode (page 20).
The unit is in MONO mode.
t Cancel MONO mode (page 20).