My 4wheel Ventura DLX has a stereo & speakers,Underlighting, and a cigarette lighter wired to the batteries,why does the charger turn off before the batteries are fully charged?batteries,charger new

fuse for my scooter ventura4

Charger light to a phone will stay on because some cigarette lighters do not require a key on for use. It is wired into a 20 amp fuse though. It is best to unplug devices from cigarette lighters to prevent battery drain unless it is an everyday driver. A phone charcger does not draw to many amps for major battery drain.

You may have blown the speaker. First I would check the speaker, unpluging the speaker two wire jack the speaker should read 8 ohms with a meter sat to ohm. Good luck.

1996 Isuzu Rodeo Car Audio Wiring Guide
Car Radio Battery Constant 12v+ Wire: Red/White
Car Radio Accessory Switched 12v+ Wire: Brown/White
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Green
Car Stereo Dimmer Wire: Red/Yellow
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 5 1/4′
Car Audio Front Speakers Location: Doors
Left Front Speaker Positive Wire (+): Blue
Left Front Speaker Negative Wire (-): Yellow
Right Front Speaker Positive Wire (+): Green
Right Front Speaker Negative Wire (-): Gray
Car Audio Rear Speakers Size: 4′ x 6′
Car Audio Rear Speakers Location: Behind the Seat
Left Rear Speaker Positive Wire (+): Orange
Left Rear Speaker Negative Wire (-): White
Right Rear Speaker Positive Wire (+): Orange/Blue
Right Rear Speaker Negative Wire (-): Orange/White

First using multimeter check if there's voltage at the cigarette lighter slot as if there is then the problem is in charger, otherwise check for continuity of Cigarette lighter wiring

start with a test light and check for power at the center of the cigarette lighter socket. If power is good, then check for ground at side of lighter socket.
If no power, run wire from power wire of lighter to power wire of stereo, thus tapping the power directly and bothering to trace out where the open int he circuit may be.

The part that Pulled out Should Screw into the Part that is still in the Car.

You should be, Check to make sure the fuse isnt blown on either the cigarette lighter plug or in the plug that has the wires coming out of it.

Red (accessory wire)- goes to hot wire that can be turned off.
Yellow (constant wire) goes to your cigarette lighter
Blue/white is your amplifier remote turn-on wire.
Probably have green and green/white- brown and brown/white-white and white/black, and another color for speaker wires.
You can hook one pair up to your cd player and find out if it's hooked up to the right speaker channel.
Orange (remote antenna) wire.