1993 Nissan 100nx broken radio

See if it does it again. If it does, you have a thing called parasitic draw, something is still consuming power when the car is off. Of the battery is faulty. Or you are doing short journeys that don't give enough power to recharge what starting took out.

Antenna good not broken

Key fob battery dead?

possibly the mileage driven does not allow the battery to recoup the charge it used up in starting the car. perform a draw down test to see if battery is defective

Possibly a bad connection on the positive side coming from the battery or a weak ground. Check where the leads join the terminal clamps. Has the battery been verified as good? It doesn't take a lot of amps to run lights but it does to turn over the engine. Jump starting it does not require a fully charged battery.

yes you can they sell battery chargers that you can boost car thru the lighter .lighter to lighter good luck

1993 Nissan Maxima Car Stereo Radio Wiring Diagram
Radio Constant 12V+ Wire: Red/Black
Radio Ignition Switched 12V+ Wire: Blue
Radio Ground Wire: Vehicle Chassis
Radio Illumination Wire: Red/Yellow
Radio Dimmer Wire: N/A
Radio Antenna Trigger Wire: N/A
Radio Amplifier Trigger Wire: N/A
Front Speakers Size: 4′ x 6′
Front Speakers Location: Doors
Left Front Speaker Wire (+): Blue/White
Left Front Speaker Wire (-): Blue/Yellow
Right Front Speaker Wire (+): Brown
Right Front Speaker Wire (-): Brown/White
Rear Speakers Size: 6′ x 9′
Rear Speakers Location: Rear Deck
Left Rear Speaker Wire (+): Red
Left Rear Speaker Wire (-): Green
Right Rear Speaker Wire (+): Blue
Right Rear Speaker Wire (-): Pink

pls rate because noone has been rating hope this helps

HAVE BATTERY CHECK.IT SHOULD BE 12.5 VOLTS.IF NOT REPLACE BATTERY.IF YES.BATTERY GOOD MAKE SURE BATTERY CABLES IS TIGHT.AND FREE FROM CORROSSION.IF ALL IS GOOD PROBLEM IS IN THE STARTER OR SOLENOID RELAY.TURN OFF RADIO BEFORE DISCONNECTING BATTERY CABLES SO YOU WONT LOSE RADIO CODE..

Check the wiring and fuses for any opens or shorts

if you follow the lower radiator hose all the way to the motor you will see a alloy case held in by three 10mm bolts remove them pull of the housing and the thermostat is in there