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youd need the NPR heavy truck, FSM book page on radio wiring
buy book at any Isuzu heavy truck dealer.
we dont now what radio option cam on that NPR
nor what country , other countries use different radios.
so..... this is USA forum, and we dont have NPR books.
The stock radio has two electrical plugs and the anneena wire plugs in and theirs a grond wire that goes on the back of the unit with a bolted connection. If you have an aftermarket radio you can get universal connectors at major dept stores that fit your car ( or auto parts stores) These connectors plug into the cars wire harness and the wires are labled to what they do and just connect the wires as marked on the sticker on the radio. If the radio is a factory radio that did'nt come in an Isuzu their commonly not marked and the wire pattern in the back of the radio has to be figured out.
If this is a factory radio - the year would be required.
However just before 2000 model year... and for a couple years after - the following wiring colors are prettymuch constant....
5 1/4" Doors
Left Front (+)
Left Front (-)
Right Front (+)
Right Front (-)
4" Roof Mount
Left Rear (+)
Left Rear (-)
Right Rear (+)
Right Rear (-)
Orange/White Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.
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