VGL3Z 18808 A
The part number vgl3z 18808 a designates an official Ford OEM accessory sound upgrade: the Ford Custom Accessories Kicker Powered Subwoofer and Audio Amplifier Kit. Engineered specifically for thirteenth-generation Ford F-150 pickup trucks (model years 2015 through 2020) in SuperCab and SuperCrew cab configurations, this factory audio enhancement provides deep, impactful low-end bass frequencies without sacrificing precious cabin floor space. Mounting seamlessly behind the folding rear seatback, VGL3Z-18808-A plugs directly into factory pre-wired harnesses for a clean, professional aesthetic.
Kit Architecture, Kicker Engineering, and Cab Compatibility
Ford partnered directly with renowned mobile audio manufacturer Kicker to engineer the VGL3Z-18808-A system. The unit comprises a rigid, computer-modeled molded ABS acoustic enclosure housing an 8-inch low-profile subwoofer driver paired with an integrated 100-watt to 200-watt high-efficiency Class-D digital amplifier. The entire assembly is contoured to fit flush against the rear aluminum cab wall directly behind the driver-side rear passenger seatback, utilizing existing factory mounting studs.
Compatibility spans 2015-2020 Ford F-150 models equipped with base factory audio or mid-tier SYNC systems (XL, XLT, Lariat) that lack premium Sony or B&O audio systems. In many SuperCab and SuperCrew trucks, Ford installed a factory subwoofer electrical connector taped to the rear cab wall wiring loom, supplying pre-amp audio signals, 12-volt battery power, and remote turn-on triggers through a single quick-disconnect plug.
The technical specification table below highlights mechanical, acoustic, and electrical parameters for the Ford Kicker VGL3Z-18808-A kit.
| Specification Category | Technical Parameter | Operating Value / Standard | Functional Benefit |
|---|---|---|---|
| Subwoofer Driver | 8-Inch High-Excursion Driver | Custom shallow-mount cone | Delivers tight, punchy 35 Hz to 120 Hz bass |
| Amplifier Architecture | Integrated Class-D Monoblock | 100W RMS / 200W Peak power | High electrical efficiency; low thermal draw |
| Enclosure Material | Molded Acoustic ABS Plastic | Vehicle-specific CAD contour | Resists vibration; zero cab space lost |
| Mounting Location | Behind driver-side rear seat | Bolts to factory cab wall studs | Completely concealed from view |
| Vehicle Compatibility | 2015-2020 Ford F-150 | SuperCrew and SuperCab | Factory look with zero loose wiring |
| Signal Input | High-level speaker / Line-level | Ford OEM proprietary plug | Seamless integration with factory radio head |
Mounting the subwoofer behind the rear seat preserves 100 percent of under-seat flat floor storage for toolboxes and cargo.
Installation Protocols and Forscan Software Configuration
Physical installation of VGL3Z-18808-A is straightforward, typically requiring less than one hour. The installer folds the rear seatback forward by releasing the hidden mechanical latch, locates the factory green or gray auxiliary harness connector taped behind the cab insulation carpet, bolts the steel bracket to the factory cab studs using supplied nuts, and plugs in the umbilical harness.
The crucial step that perplexes many DIY truck owners is electronic module activation. In base F-150 models, the factory audio control module (ACM) leaves the subwoofer output line deactivated in software. To enable the subwoofer, owners must either visit a Ford dealership for an IDS computer flash or utilize Forscan diagnostic software paired with an OBD-II adapter (such as an OBDLink EX). By changing the ACM register 727-01-01 to enable external auxiliary subwoofer output, the factory head unit begins transmitting rich low-pass bass signals.
The table below outlines the step-by-step installation and Forscan programming parameters for the Kicker subwoofer upgrade.
| Installation Phase | Action Required | Tool / Software Used | Diagnostic / Verification Result |
|---|---|---|---|
| Seatback Release | Unlatch rear seatback release pin | Box-end wrench or specialty latch strap | Exposes cab rear wall insulation and studs |
| Harness Inspection | Locate factory 8-pin harness plug | Flashlight and utility knife | Confirms presence of pre-wired audio loom |
| Chassis Mounting | Secure bracket to cab wall studs | 10mm socket and ratchet | Rigid vibration-free physical mounting |
| Module Connection | Snap quick-disconnect wiring plug | Hand connection | Powers amplifier and feeds audio signal |
| Forscan Programming | Enable Auxiliary External Subwoofer | Forscan software with OBDLink adapter | Activates ACM register 727-01-01 to broadcast bass |
| Audio Equalization | Set truck radio tone controls flat | Center touchscreen audio settings | Balances factory door speakers with subwoofer |
Enabling the subwoofer in Forscan also re-equalizes door speakers by removing heavy bass loads, eliminating speaker distortion.
How to Install and Activate the VGL3Z-18808-A Kit in 4 Steps
Follow this practical guide to bolt in your Ford Kicker subwoofer and activate audio signals via Forscan.
Release Driver-Side Rear Folding Seatback
Reach behind the rear driver-side seatback, lift the hidden silver latch pin, and fold the backrest forward to access the cab wall.
Bolt Subwoofer Enclosure to Cab Wall Studs
Align the Kicker metal mounting brackets over the threaded cab studs and tighten down the supplied 10mm nuts securely.
Connect Factory Wiring Harness Plug
Untape the factory green/gray wiring connector from the rear harness bundle and firmly plug it into the Kicker amplifier socket.
Activate Subwoofer in Forscan Audio Control Module
Connect an OBD-II adapter, open Forscan on a laptop, navigate to ACM Module Configuration, and enable Auxiliary External Subwoofer.
Frequently Asked Questions (7 Questions Answered)
Q1: What is part number VGL3Z-18808-A?
VGL3Z-18808-A is an official Ford OEM accessory Kicker powered subwoofer kit designed for behind-seat installation in 2015-2020 Ford F-150 trucks.
Q2: Will VGL3Z-18808-A fit in a Regular Cab F-150?
No; this specific kit is designed strictly for SuperCab and SuperCrew (crew cab) models; it will not fit the cab dimensions of a Regular Cab.
Q3: Do I need to program the truck computer for the subwoofer to work?
Yes; in most factory non-Sony/B&O trims, the subwoofer output is turned off in software and must be enabled using Forscan or a Ford dealer IDS scan tool.
Q4: Does this kit replace the existing door speakers?
No; VGL3Z-18808-A adds an independent 8-inch powered subwoofer while retaining your existing door speakers, although Kicker also sells matching door speaker kits.
Q5: Does installing this subwoofer void the Ford factory warranty?
No; because it is an official Ford licensed accessory installed via plug-and-play connections, it preserves your vehicle factory bumper-to-bumper warranty.
Q6: Can I install this in an F-150 equipped with the B&O premium sound system?
No; trucks equipped with factory B&O or Sony audio already feature a proprietary amplifier and subwoofer system that is incompatible with this plug-and-play kit.
Q7: How much power does the integrated Kicker amplifier produce?
The integrated Class-D digital amplifier produces 100 watts RMS and up to 200 watts peak dynamic power, specifically tuned for the 8-inch driver.
Final Thoughts & Key Takeaways
In conclusion, understanding vgl3z 18808 a provides essential clarity, practical strategies, and actionable advice. By incorporating these foundational insights, adhering to verified safety guidelines, and following structured best practices, you ensure reliable, long-term outcomes while preventing common mistakes. Stay informed, consult certified professionals when needed, and maintain consistent quality care.