2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI)
Android Auto, CarPlay & Streaming Apps for 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI)
| Factory code | FLHRSI |
|---|---|
| Engine | Twin Cam 88 |
| Factory head unit | No factory options — HogPlay Screen recommended |
| Factory USB location | None |
The 2004 Road King Custom (FLHRS/FLHRSI) stripped the valanced fenders and touring bulk off the standard Road King, leaving a leaner, blacked-out silhouette riding on spoked wheels — and this particular rig is set up to pull a sidecar, adding stability and cargo room for real-world touring. Power comes from the Twin Cam 88, Harley's 88-cubic-inch big twin that carried the touring line through the early 2000s. No factory radio or screen ever came on this bike, so the fix is the 7-inch HogPlay Media Screen mounted right on the bars.
No Factory Radio — Add Your Own Screen
The 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) left the factory with no radio, stereo or touchscreen to bypass — so instead of a workaround, you add your own. A standalone HogPlay Media Screen is a 7-inch head unit with wireless Apple CarPlay and Android Auto, live Maps & Waze navigation, calls and streaming built in — we recommend the Screen 7 Pro with its onboard DVR drive-cam. Most riders settle for Bluetooth-only kits that leave the phone in your pocket with no turn-by-turn directions; this puts it all on the bars instead. It mounts to the handlebars with basic power and ground and comes off just as easily, so reach out to the HogPlay team if you'd like a hand. (Media Box support on Screens is in development.)
HogPlay CarPlay screens that fit 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI)
✓ Universal fitHogPlay 7" Motorcycle Touchscreen - Wireless CarPlay, Android Auto & Screen Mirror with DVR Dash Cam
✓ Universal fitHogPlay 7" Motorcycle Touchscreen - Wireless CarPlay, Android Auto & Screen MirroringWe also stock universal parts that fit the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) and most other motorcycles — standalone CarPlay screens and universal USB power.
Universal parts that fit 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) and most other motorcycles
✓ Universal fitHogPlay Motorcycle Media Box Power Boost Cable - USB-C✓ Universal fitHogPlay Motorcycle Media Box Power Boost Cable - USB-A
✓ Universal fitHogPlay Universal Motorcycle USB Charging Ports - USB-A & USB-C (Harley-Davidson, Indian, Goldwing)About the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI)
Custom-trimmed but sidecar-capable, the 2004 FLHRS/I pairs Road King touring DNA with a stripped, low-key stance — shorter windshield, minimal chrome, and the stability a third wheel brings for long-haul riding two-up or loaded with gear. It's a comfortable, torquey ride off the Twin Cam 88, but like every Road King Custom of this era, it left the factory with no navigation, no Bluetooth, and no way to run a phone.
The HogPlay Media Screen solves that without touching the stock dash. It clamps to the handlebar, runs on a simple power and ground tap into the bike's existing wiring, and mounts reversibly — face-up or face-down — so it works whether you're solo or running the sidecar rig. Once it's wired in, it's wireless Apple CarPlay and Android Auto through a built-in speaker, right where your eyes already are.
2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) CarPlay & Android Auto — FAQ
Does the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) support wireless Apple CarPlay and Android Auto?
The 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) left the factory with no radio or touchscreen, so it cannot run CarPlay on its own. A bar-mounted HogPlay Media Screen adds wireless Apple CarPlay and Android Auto, navigation and streaming to the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI).
How do I get wireless Android Auto on the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI)?
The 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) has no factory radio, so a HogPlay Media Screen is the way to add Android Auto: it has wireless Android Auto and Apple CarPlay built in, nothing else required.
What apps and streaming can I run on the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI)?
The HogPlay Media Screen on the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) is a self-contained media center: wireless Apple CarPlay and Android Auto plus navigation, music and apps on the handlebars.
Is the HogPlay install on the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) plug-and-play and reversible?
Yes. Every HogPlay upgrade for the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) is true plug-and-play — a simple electrical connection with no cutting, splicing or flashing, and it's fully reversible. Setup is easy; exactly how you reach the connector varies by bike (USB adaptors plug straight in, while some radio-mounted bypasses need brief fairing or radio access).
Do I need a bypass to add Android Auto to the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI)?
No — the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) has no factory screen to unlock, so no bypass is involved. A bar-mounted HogPlay Media Screen adds wireless Android Auto and Apple CarPlay to the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) on its own.
Which HogPlay parts fit the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI)?
The part made for the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) is the bar-mounted HogPlay Media Screen — wireless Android Auto, Apple CarPlay, navigation and streaming in one unit. Confirm the exact fit with What Fits.
For the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI), is a Media Box or a Piglet the better pick?
Neither is needed on the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI): with no factory radio, the all-in-one HogPlay Media Screen is the pick — wireless Android Auto and Apple CarPlay are built in.
Is Android Auto on the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) wireless?
Yes — the HogPlay Media Screen runs Android Auto and Apple CarPlay on the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) fully wireless; pair your phone once over Wi-Fi and Bluetooth.
Every 2004 FLHRS/I Sidecar Road King Custom deserves modern connectivity, and the HogPlay Media Screen delivers it without rewiring the bike. Dual Bluetooth means your phone pairs for wireless CarPlay or Android Auto on one channel while a second channel feeds an auxiliary amp, handlebar speakers, or a portable Bluetooth speaker for real volume. A small built-in speaker still handles turn-by-turn prompts and light audio on its own. Sealed, waterproof, and built rugged, it shrugs off rain, road grime, and sidecar miles alike.
Android Auto on the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI): HogPlay makes the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI) run wireless Android Auto and Apple CarPlay — compare every Android Auto option that fits the 2004 Harley-Davidson Road King Custom with Sidecar (FLHRSI), then confirm your exact fit with What Fits.
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