How to Wire a Pioneer DEH-1900MP

by Ryan Carter
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The Pioneer DEH-1900MP is an aftermarket stereo designed for use in vehicles. The single-DIN size stereo features a detachable faceplate, remote control, three-band equalizer with six preset tone settings, and rear RCA pre-outs. With its front panel auxiliary input, a MP3 player can be connected easily to the DEH-1900MP. The Pioneer DEH-1900MP is capable of producing 22 watts of constant power and 55 watts of peak power. Using an aftermarket wiring harness specifically designed for the year, make and model of your vehicle simplifies connecting the DEH-1900MP to your vehicle's stereo system.

Step 1

Attach an aftermarket wiring harness to the Pioneer DEH-1900MP by matching the colored wires from the wiring harness to the colored wires of the DEH-1900MP. Twist the bare wire ends of the corresponding wires together and wrap each connection with electrical tape.

Step 2

Disconnect the black negative cable from the vehicle's battery using a crescent wrench.

Step 3

Remove the plastic trim piece that surrounds the factory-installed stereo receiver using a screwdriver to gently pry it away from the dashboard. Remove the screws that hold the stereo in place and slide it forward. Unplug the factory stereo wiring harness from the vehicle wiring harness.

Step 4

Insert the metal sleeve included with the Pioneer DEH-1900MP into an aftermarket mounting bracket. Secure the metal sleeve to the mounting bracket by bending the tabs around the outermost edge of the metal sleeve using a screwdriver. Insert the mounting bracket into the stereo opening and secure it in place using the screws removed earlier.

Step 5

Plug the aftermarket wiring harness into the vehicle wiring harness. Slide the Pioneer DEH-1900MP into the metal sleeve and secure it in place using a screwdriver. Press the plastic trim piece back into place. Reconnect the negative battery cable.

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