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8.4 Universal conversion harness for 2013-2018 and 2019+ Classic 4th Gen Ram Trucks. Our version 4 (v4) harness allows upgrading to a 4th Gen 8.4 Ram Radio (ie 3c RA3/VP3-NA & RA4/VP4-NA, 4c UAQ/VP4R & UAS/VP3R).

Choose based on factory fan speed, radio type and available items you want included (see Price list/Product Descriptions. Such as:

  • Cell Error Bypass Plug (for RAx -NA USA radios)
  • HVAC module for RAx radios (ie RA3/RA4) or UAx (ie 4c UAQ/UAS)
  • Req'd Fan Harness Add-on for 4 speed Fan trucks
  • Req'd Fan Resistor for 4 speed Fan trucks
  • UAx USB Hub Adapter Harness
  • ATC Temp Sensor (for 4 speed trucks adding Single Zone ATC)
  • ATC Part2 Harness (for 7 speed trucks adding Single Zone ATC)
  • ATC Temp & Humidity Sensors (for 7spd trucks adding Single Zone ATC)

Universal 8.4 Conversion harness w/ATC Pt1 (v4)

SKU: 364215376135191
  • Our Universal 8.4 Harness includes support for the following additional upgrades/add-ons.

    - 4spd/7spd support in same harness

    - 4 Speed Fan Trucks (ie 2500/3500) require Add-On plug n play v4 fan harness.

    - Single Zone ATC Part 1 built-in (ie for Auto Temp Control Cabin Temp Sensor). Just Add Temp Sensor for 2013+ 4spd Trucks or our ATC part 2 harness for 14+ 1500's/classic) to complete SIngle Zone ATC wiring & both Sensors! (BCM programming changes req'd by customer)

    - Support for adding Dual Zone ATC *  For those wanting to add extra passenger side blend door. See RamForum Thread for details.
    * Will have to custom build rest of Pass. blend door wiring into add-on harness

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