Mobile Electronics› Transponders and Components

Rockford Fosgate

4-Speaker 800-Watt Amplified Audio System

$1,849.99

SKU: HD14U-STG2

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Rockford Fosgate HD14U-STG2 is a 4-speaker, 800-watt amplified audio system designed for select 2014 and newer Harley-Davidson Ultra motorcycles. This kit includes two 6.5" fairing speakers, two 6.5" Tour-Pak speakers, an 800W 4-channel amplifier, and an amplifier installation kit.

It features a plug-and-play design for easy installation, with kits that bolt to factory attachment points and direct-connect wiring harnesses. The speakers are custom-tuned to overcome wind, road, and exhaust noise at highway speeds, providing a clear audio experience on the open road.
Show original supplier description
The Rockford Fosgate HD14U-STG2 is a high-performance audio system upgrade designed specifically for select 2014 and newer Harley-Davidson Ultra models. This kit delivers an 800-watt output across four speakers, including two 6.5" fairing speakers and two 6.5" Tour-Pak speakers, all powered by an IPX6 Element Ready™ 4-channel amplifier. Stainless hardware is employed for its resistance to corrosion, and the materials used for plastic components are UV-inhibitor treated. The speakers are custom-tuned to cut through wind, road, and exhaust noise, ensuring a clear and powerful audio experience even at highway speeds. Installation is simplified with a plug-and-play design, utilizing direct-connect wiring harnesses for Harley-Davidson models and bolting directly to factory attachment points. The kit includes a 90-degree harness for Road Glide installations. However, it is crucial to note that factory Harley-Davidson Boom!™ Box radios (4.3, 6.5GT, and GTS) must be flashed to use this kit; failure to do so may damage the speakers. A list of dealers capable of performing the radio flash is available. Stretched Harley-Davidson ABS saddlebags are not optimized for this kit, and fiberglass saddlebags and bag-lids are explicitly not compatible. Additionally, the T-harness features a loop-thru for an optional Rockford Fosgate DSR1 Digital Signal Processor, which is sold separately.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRockford Fosgate
Part NumberHD14U-STG2
CategoryMobile Electronics

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy