Sony CDX-4000X Installation/Connections Manual page 11

Rotary c ommander RM-X4S (notsupplied)
Insert w iththecord upwards.
Fuse ( 10A)
Light b lue
totheinterface cable ofacar
telephone
vers le cordon de liaison d'un tdl6phone de voiture
ATT
Blue
Bleu
to the power antenna control lead or power supply lead of antenna
booster amplifier
Notes
• It is not necessary to connect this lead if there is no power antenna or
antenna booster, or with a manually-operated telescopic antenna.
• When your car has a built-in FM/AM antenna in the rear/side glass, see
"Notes on the control and power supply leads."
Max. supply current 0.1 A ANT REM