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See all parts that fit your 2014 Promaster 1500

Crux SOCGM-18L Wiring Interface

Install a new car stereo and retains the safety warning chimes and other factory features in select 2014-2019 vehicles from GMC, Chevrolet, Cadillac

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• Provides 12-Volt accessory power (RAP)
• Compatible with non-amplified audio systems
• Micro-B USB Updatable
• Retains Illumination

See compatible vehicles Learn more about the socgm18l
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List price $117.60
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-36%

$75.60

 with warranty
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Description


Product Features:

  • Compatible with select 2014-2019 vehicles from GMC, Chevrolet, Cadillac
  • Designed to install a new aftermarket car stereo
  • Provides accessory power (12-volt 10-amp)
  • Retains R.A.P. (retained accessory power)
  • Provides NAV outputs (parking brake, reverse, and V.S.S)
  • Retains all safety and warning chimes
  • For non-amplified models, or when bypassing a factory amplifier
  • Micro-B USB updatable
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 2014 Ram Promaster 1500 is not compatible. Change vehicle or See list of compatible similar products


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Specifications & Details


Harness Features
Vehicle Sound System
Standard and Premium Sound
Main Harness Function
Install Aftermarket Car Stereo & Retain Factory Safety and Warning Chimes
Additional Harness Features
Chime Retention
Provides Parking Brake & Reverse Signals
Retained Accessory Power (RAP) Retention
Premium Harness Features
Factory System Amplification
Non-Amplified
Compatible Premium Audio Systems
Standard Bose
On-Star Compatible
No
Chime Retention
Yes
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

SOCGM-18L

Weight:

0.40lbs

Internal SKU:

socgm18l

Internal Product ID:

157003

Customer Ratings & Reviews


Crux SOCGM-18L Wiring Interface thumbnail image

5 star
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4 star
50%
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0%
2 star
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1 star
0%



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Customer Reviews

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Works perfectly for 2017 GMC Elevation

Always get a little weary installing harnesses especially if you order the wrong one but luckily the crux was simple to install and didn’t have any issues!

By Carson on March 29, 2025 Checkmark Icon Verified purchase


By Damen on November 18, 2024 Checkmark Icon Verified purchase



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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.