Pioneer DMH-1700NEX Multimedia Receiver Wiring Diagram
Complete diagram
Every cable and connector on the rear of the unit and where each one goes.
Terminals and components · 23
- Battery +
- Switched 12 V
- Ground
- Signals
- Illumination and preamp
- Speakers
- Video and camera
- Connectors
- Mute
- Antenna and devices
Connection
Plug the vehicle antenna cable in here.
Where to mount it
Where it best picks up the driver's voice; if the cable does not reach the sun visor, mount it on the steering column. Connect it with the unit off (ACC OFF).
Maximum length
Micro USB: up to 2 m; USB-C: up to 4 m. Longer cables may not work properly.
Installation
Follow the tuner's instruction manual.
Cable
Use a mini-jack AV cable: with other cables the contact order may differ and disturb picture and sound.
Colors
White: left audio; red: right audio; yellow: video.
Fuse
The power cord has a 10 A fuse: replace it only with one of the same rating.
No ACC
It cannot be installed in a vehicle without an ACC position on the ignition switch.
Why
The unit knows when the lights are on to dim the display.
Separate screws
The power amp ground and this unit's ground (or other devices) go to the body with different screws. A loose screw can cause smoke, fire or malfunction.
Why
The unit senses whether the car moves forward or backward and shows the rear camera.
Always active
It outputs the signal even if the audio source is off.
Required
This lead must go to the power supply side of the switch, not the ground side.
Caution
Tape any unused speaker leads. With a two-speaker system, do not connect anything to the spare leads.
Impedance
4 to 8 Ω speakers; with an external amp these leads are not used.
Caution
Tape any unused speaker leads. With a two-speaker system, do not connect anything to the spare leads.
Impedance
4 to 8 Ω speakers; with an external amp these leads are not used.
Caution
Tape any unused speaker leads. With a two-speaker system, do not connect anything to the spare leads.
Impedance
4 to 8 Ω speakers; with an external amp these leads are not used.
Caution
Tape any unused speaker leads. With a two-speaker system, do not connect anything to the spare leads.
Impedance
4 to 8 Ω speakers; with an external amp these leads are not used.
Plugs
L = left, R = right. With this connection the speaker leads are not used.
Plugs
L = left, R = right. With this connection the speaker leads are not used.
Plugs
L = left, R = right. With this connection the speaker leads are not used.
Warning
Never install the rear display where the driver can watch video while driving.
Connection
It comes from the connector 1 cable.
Warning
Use it only for a reverse or mirror-image rear view camera; do not connect other equipment.
Automatic view
Shifting into REVERSE switches the screen to the camera automatically (needs the violet/white connected).
Power cord
Battery, ignition, ground, illumination and vehicle signals.
Terminals and components · 7
- Battery +
- Switched 12 V
- Ground
- Signals
- Illumination and preamp
Fuse
The power cord has a 10 A fuse: replace it only with one of the same rating.
No ACC
It cannot be installed in a vehicle without an ACC position on the ignition switch.
Why
The unit knows when the lights are on to dim the display.
Separate screws
The power amp ground and this unit's ground (or other devices) go to the body with different screws. A loose screw can cause smoke, fire or malfunction.
Why
The unit senses whether the car moves forward or backward and shows the rear camera.
Always active
It outputs the signal even if the audio source is off.
Required
This lead must go to the power supply side of the switch, not the ground side.
Speaker leads
The eight leads for the four speakers, with their polarity.
Terminals and components · 4
- Speakers
Caution
Tape any unused speaker leads. With a two-speaker system, do not connect anything to the spare leads.
Impedance
4 to 8 Ω speakers; with an external amp these leads are not used.
Caution
Tape any unused speaker leads. With a two-speaker system, do not connect anything to the spare leads.
Impedance
4 to 8 Ω speakers; with an external amp these leads are not used.
Caution
Tape any unused speaker leads. With a two-speaker system, do not connect anything to the spare leads.
Impedance
4 to 8 Ω speakers; with an external amp these leads are not used.
Caution
Tape any unused speaker leads. With a two-speaker system, do not connect anything to the spare leads.
Impedance
4 to 8 Ω speakers; with an external amp these leads are not used.
External power amp
RCA outputs to the amplifiers and the lead that turns them on. With this connection the speaker leads are not used.
Terminals and components · 6
- Signals
- Illumination and preamp
- Mute
- Antenna and devices
Plugs
L = left, R = right. With this connection the speaker leads are not used.
Plugs
L = left, R = right. With this connection the speaker leads are not used.
Plugs
L = left, R = right. With this connection the speaker leads are not used.
Amp turn-on
Connect it to the system remote (REM) terminal of each amplifier.
Connection
Follow each amplifier's manual.
Camera and video
Rear view camera, external video input and output for a rear display.
Terminals and components · 2
- Video
- Reverse
- External device
Warning
Use it only for a reverse or mirror-image rear view camera; do not connect other equipment.
Automatic view
Shifting into REVERSE switches the screen to the camera automatically (needs the violet/white connected).
Why
The unit senses whether the car moves forward or backward and shows the rear camera.
Cable
Use a mini-jack AV cable: with other cables the contact order may differ and disturb picture and sound.
Colors
White: left audio; red: right audio; yellow: video.
Settings
The unit must be set up to use it.
Warning
Never install the rear display where the driver can watch video while driving.
About This Diagram
These diagrams are redrawn from pages 3–6 of the Pioneer DMH-1700NEX Multimedia Receiver manual, and we offer them completely free and in English. We have also categorized it in the Car Audio & Stereo (Automotive) section on Diagramverse, and it has been rated by 1 user with an average rating of 5.0. If you have any specific questions about the Pioneer DMH-1700NEX Multimedia Receiver Wiring Diagram, we suggest checking the Frequently Asked Questions (FAQs) section.
Printable Pioneer DMH-1700NEX Wiring Diagrams
Wiring Instructions
Before you start
The Pioneer DMH-1700NEX receiver is only for 12 V negative-ground vehicles whose ignition switch has an ACC position. If your vehicle has no ACC wire or circuitry, do not install it. The unit is designed for professional installation. If you are not comfortable removing dash trim, working near airbags or identifying vehicle circuits, have a trained mobile-electronics installer do the job. A car audio install like this does not normally need a permit, but follow your vehicle maker's instructions for trim removal and airbag areas.
Pick the diagram tab that matches your installation. For a basic install that drives the speakers from the built-in amplifier, use Power and Speakers. Add Power amp if external amplifiers or a subwoofer amp take the RCA outputs. In Camera and video, choose Rear camera for a backup camera, or AV video and rear display for an external video source or a rear-seat screen. Complete shows everything at once.
- Tools: wire stripper, crimper or soldering iron, insulated butt connectors or heat-shrink, electrical tape, cable clamps, a digital multimeter and a test light.
- Harness: a vehicle-specific harness adapter and dash kit let you connect without cutting factory wiring. Check with your parts supplier for the right ones for your vehicle.
- Wire gauge: the unit's leads come at the correct size. Do not shorten them, because the protection circuits (fuse holder, fuse resistor, filter) are built into the leads. If you extend a lead, use wire at least as heavy as the original.
- Speakers: 4 to 8 Ω, rated above 50 W maximum input.
Disconnect the negative (–) battery cable before you make any connection.
Step-by-step wiring
- Choose the mounting spot. It must not block the driver's view, sit in an airbag deployment zone, or be near a heater vent. Mount the unit horizontally, within 0 to 60 degrees, and leave about 5 cm of clear space behind it for heat.
- Connect the Black ground first, to clean bare metal on the vehicle body, and tighten it firmly. Give any power amp its own ground under a different screw.
- Connect Yellow to a terminal that is live at all times. Do not run it straight to the battery terminal: engine vibration can wear through its insulation where it passes the firewall.
- Connect Red to the switched ACC terminal.
- Connect Orange/white to the lighting switch terminal.
- Connect Light green to the power supply side of the parking brake switch, never the ground side, and never bypass it.
- Of the two backup lamp wires, connect Violet/white to the one whose voltage changes in REVERSE (R).
- Wire the speakers pair by pair, keeping + to + and − to − on every speaker. With a two-speaker system, connect nothing to the unused speaker leads.
- For external amps, run RCA cables from FRONT OUT, REAR OUT and SUB OUT, and connect Blue/white to each amp's system remote terminal. The total load on Blue/white must not exceed 300 mA. Connect Yellow/black only if you have equipment with a mute lead. Otherwise leave it unconnected.
- For a camera, run an RCA cable from the camera's video output to the Brown input. Use a reverse or mirror-image rear view camera only. For video, connect the external component to AUX IN with a mini-jack AV cable, and the rear display to REAR MON.
- Plug in the antenna, the SiriusXM tuner (with the supplied SiriusXM cable), the steering wheel remote adapter and the USB cable. Connect the microphone with the unit off (ACC OFF). Mount it on the sun visor in the up position, or on the steering column away from the wheel.
- Tape every unused lead. Secure the wiring with clamps or tape, away from the steering column, shift lever, pedals, seat tracks, doors and hot surfaces.
Testing and start-up
Test everything before you mount the unit for good. Reconnect the battery, then use the multimeter at the harness: Yellow should read about 12 V with the key off, Red 0 V with the key off and 12 V at ACC, and Violet/white about 12 V only in R. Turn the ignition off and press RESET with a pen tip before first use.
- At ACC the unit should power up and the amps should turn on with it. Both should shut off with the key.
- Use Fader/Balance to check each speaker on its own. On a two-speaker system, set Front and Rear to 0.
- If you use SUB OUT, turn on Subwoofer in the Cutoff setting.
- With a camera, turn on Back-up Camera Input and confirm the camera image appears as soon as you shift into R. Without a camera, leave the setting off.
- Apply the parking brake and confirm video from AUX or USB is allowed.
- Tune SiriusXM Channel 1 to confirm the tuner works.
Then mount the unit to the factory bracket using only the supplied screws.
Safety notes
- The unit is rated 14.4 V DC (10.8 V to 15.1 V allowable), draws up to 10.0 A and is protected by a 10 A fuse. Replace the fuse only with one of the same rating.
- Never cut into the unit's power lead to feed other devices. The lead will overheat.
- Uncovered speaker leads can short the amplifier. Insulate every one you don't use.
- If the vehicle has a factory backup camera that meets current regulations, do not disable it. Connecting it requires an adaptor.
- Never place a rear display where the driver can see it. Never open the unit: there are high-voltage parts inside.
Troubleshooting
| Symptom | Probable Cause | What to Check |
|---|---|---|
| The unit won't turn on at all | Loose ground, no voltage on Yellow or Red, or a blown fuse | Measure about 12 V from Yellow to ground at all times and from Red to ground at ACC. Check continuity from Black to bare body metal, and check the 10 A fuse. |
| Clock and presets are lost every time I turn the key off | Yellow is connected to a switched circuit instead of constant 12 V | With the key off, Yellow must still read about 12 V. If it reads 0 V, move it to a constant 12 V terminal. |
| The radio stays on with the key out, or the battery goes flat | Red is on a constant 12 V circuit, or Red and Yellow are swapped | With the key off, Red must read 0 V. Move it to a terminal that is live only at ACC. |
| A caution message covers the screen and video won't play while I'm parked | Light green is not connected, is on the ground side of the brake switch, or the interlock was triggered | Make sure Light green is on the power supply side of the parking brake switch. Then apply the parking brake, release it, and apply it again, holding the brake pedal down. |
| No camera picture when I shift into reverse | Back-up Camera Input is off, the Brown RCA is loose, or Violet/white is on the wrong backup lamp wire | Turn Back-up Camera Input on. Reseat the camera RCA in the Brown input. Confirm Violet/white goes to the wire that reads about 12 V only in R. |
| Black screen in reverse, and I have no camera | Back-up Camera Input is set to on | Turn Back-up Camera Input off in the camera settings. |
| Thin sound with weak bass, even though every speaker plays | Reversed polarity on one or more speakers | Check each pair: White, Gray, Green and Violet go to +, and the black-striped wire of each pair goes to −. |
| A speaker is silent, or the volume won't go up | Speaker lead or RCA cable not connected properly | Use Fader/Balance to find the silent channel. Check that lead pair for a loose crimp, and with the power off check its continuity to the speaker. Reseat the RCA plugs if you use amps. |
| Caution! AMP Overload appears | Shorted speaker lead, bare strands touching metal, or speakers below 4 Ω | Insulate the leads, check that no speaker wire touches the chassis, and confirm each speaker is 4 to 8 Ω. Then turn ACC off for at least 9 seconds and back on. |
| My external amplifier doesn't turn on | Blue/white not connected, or overloaded by too many devices | At ACC, measure about 12 V on Blue/white at the amp's remote terminal. Keep the total load at or under 300 mA. |
| The screen doesn't dim when I turn the headlights on | Orange/white not connected to the lighting switch terminal, or Lighting Detect is off | With the headlights on, measure voltage on Orange/white. Turn on Lighting Detect in Display Settings. |
| Check Antenna or Check Tuner appears | Antenna plug not seated, or the SiriusXM tuner cable is loose or not the supplied one | Reseat the antenna plug in the antenna jack. Reconnect the SiriusXM tuner with the supplied cable and check battery voltage. |
