Frequently Asked Questions
Everything you need to know about this head unit
Connect the single RCA cable with the yellow plug (included in your package) to extend your Bluetooth signal. This cable doubles as both a camera input AND a Bluetooth/WiFi antenna extension. The two small blue wires attached are antenna boosters that significantly improve connection stability. This simple connection takes 30 seconds and resolves 90% of Bluetooth issues. Make sure it's firmly connected even if you're not using a rear camera.
Try these proven solutions:
1. Quick Fix: Settings → Apps → Z-Link → Disable → Enable → Open (repeat each use)
2. Check Cables: Use the data/charge USB cable (not charge-only)
3. Bluetooth Setting: Disconnect all other Bluetooth connections - CarPlay needs exclusive access
4. Factory Reset Z-Link: Find the pink 'RESET' app, restart, reconnect Bluetooth, then try Z-Link
5. Sound Issues: Switch audio source to 'AUX' or 'USB/AUX' in your vehicle menu
Most issues are resolved with step 1 or 3!
The processor differs between models: The 2/32GB has a 4-Core processor, while 4/64GB and 8/128GB models feature the powerful 8-Core Cortex-A55 processor. Combined with RAM differences: The 2/32GB model with its 4-Core processor and limited RAM may experience slowdowns with heavy multitasking. The 4/64GB with 8-Core provides smooth performance for most users - no lag, seamless app switching, and enough storage for maps and music. The 8/128GB with 8-Core offers maximum performance with its generous RAM allowing unlimited multitasking and massive storage for extensive media libraries. Think of RAM like your desk space - more RAM means you can have more apps open simultaneously without slowing down.
Absolutely normal! These head units are complete replacement systems with their own GPS antenna, microphone, and Bluetooth module. Your factory connectors for these features won't be needed anymore. The important connections are: main power harness, speaker outputs, and the yellow RCA cable (even if not using a camera - it extends Bluetooth range). Any leftover factory plugs can be safely tucked away. If you're unsure about any connection, our support team is here 7 days a week.
Z-Link updates are handled through system firmware updates. Go to Settings → System → System Update. If an update is available, download it to a USB drive (FAT32 format) and install. Important: Never download Z-Link APKs from unofficial sources - they won't work and may cause issues. If you're having compatibility issues with newer iOS versions, the disable/enable workaround (Settings → Apps → Z-Link) usually resolves them while waiting for official updates.
Consider your usage:
• 2/32GB (4-Core): Budget option - fine for basic use, but may lag with multiple apps due to 4-Core processor and limited RAM
• 4/64GB (8-Core): Sweet spot - smooth Android Auto/CarPlay, multitasking, and ample storage
• 8/128GB (8-Core): Premium choice - unlimited multitasking, massive storage, future-proof for years
Most customers choose 4/64GB for the perfect balance of performance and value. The extra RAM makes a huge difference in daily smoothness!
The yellow RCA cable's blue antenna wires also boost WiFi signal! Make sure this cable is connected. Additionally, try these tips: Position the blue antenna wires away from metal surfaces, check that your phone's hotspot is set to 2.4GHz (not 5GHz) for better range, and ensure the head unit's WiFi sleep policy is set to 'Never' in Settings → WiFi → Advanced. For best performance with wireless CarPlay, keep your phone within 1-2 meters of the head unit.
Go to Settings → Sound → Equalizer and adjust to your preference. For more volume, increase the 'Loudness' setting. The 4/64GB and 8/128GB models have superior audio chips that provide cleaner, louder sound. If you have an amplifier, use the RCA outputs for best quality. Also check Settings → Factory Settings (password usually 126) → Audio settings for additional gain controls. Remember: higher-spec models (4GB+) include premium audio components for noticeably better sound.
Yes! Most vehicles work instantly. If not, use the steering wheel learning app: tap the steering wheel icon, press each button on your wheel, and assign functions. For newer vehicles with CANbus, we provide CANbus modules for automatic setup. Some vehicles may need the Key1/Key2 wires connected (usually included in our harness). If you're having trouble, let us know your exact vehicle model and we'll provide specific instructions.
We offer a 30-day return policy. If it doesn't fit or there's a compatibility issue, we'll work with you to resolve it. If you change your mind, a 20% restocking fee applies. Our team verifies compatibility before shipping to minimize issues. We provide installation support 7 days a week to help resolve any problems. With our 3-year warranty and Australian-based support, you can purchase with confidence. Full details in our Refund Policy.
Historical Journey of the Jeep Grand Cherokee:
First Generation—ZJ (1993-1998):
The initial Grand Cherokee entered production with a fresh approach, combining rugged, capable engineering and plush comfort rarely witnessed in SUVs of that era. Immediately gaining prominence through features such as superior four-wheel-drive systems, exceptional ride quality, and the well-regarded 5.2-litre V8 powertrain, the ZJ established itself as an alluring choice both for families and off-road adventurers.
Second Generation—WJ (1999-2004):
Building upon ZJ foundations, the WJ advanced significantly in comfort, technology, and road dynamics. Its refined Quadra-Drive four-wheel-drive system was notably praised, effortlessly navigating rough terrain and difficult driving conditions. Enhanced cabin amenities, better interior ergonomics, and stronger engines, including a newly offered capable 4.7-litre V8, supported the Grand Cherokee's growing reputation as a luxurious yet highly practical SUV.
Third Generation—WK (2005-2010):
The WK generation marked another significant leap forward, prominently featuring upgraded cabin materials, technological expansion, and improved driving refinement. Noteworthy attributes included increased passenger space, optional Hemi V8 engines delivering impressive torque and towing capacity, and electronic advancements such as an integrated rear-view camera, parking assistance, and improved navigation systems. These elements bridged the combined expectations of off-road enthusiasts and everyday driving needs.
Fourth Generation—WK2 (2011-2020):
Signifying the modern vision of Jeep SUV luxury, the WK2 quickly elevated itself above competitors with advancements in construction, material refinement, suspension tuning, and comprehensive connectivity. Featuring sleek exterior lines combined with high-quality interiors presented in premium materials, the WK2 promptly earned praise from reviewers worldwide for its balance of rugged structure and refined travel comfort.
Between the years 2014 and 2020, the Jeep Grand Cherokee WK2 underwent noteworthy updates. These years introduced refreshed styling cues, such as restyled headlamps and grille compositions, improved powertrain calibration for precision, and suspension enhancements emphasizing driver control, smooth road manners, and handling agility. Notably successful variants like the Overland and Summit editions offered leather-upholstered premium interiors, upgraded infotainment interfaces, and sophisticated driver-assist features catering to increased consumer tastes for comfort, prestige, and technology.
The WK2 series particularly stood out internationally by catering to diverse global demands. Known for similar naming conventions throughout most markets, including Australia, North America, Europe, and Asia, the Grand Cherokee gained popularity for its universal appeal: spaciousness for family use, competent off-road capabilities for adventurous drivers seeking reliable exploration companions, and refinement to satisfy and exceed luxury expectations.
Integrative Technology Enhancements:
While factory-installed multimedia systems continued to improve throughout the fourth-generation period, user preference evolved towards heightened smartphone integration technology beyond many original equipment expectations. Addressing these user demands, aftermarket solutions, such as the sophisticated head units offered by Brummstadt, have emerged as prudent complements for Jeep Grand Cherokee WK2 owners seeking contemporary multimedia systems.
The Brummstadt premium infotainment head unit naturally accommodates the Grand Cherokee WK2's dashboard architecture, ensuring visual cohesion with the vehicle’s existing design philosophy. Providing support for both wired and wireless Apple CarPlay and Android Auto interfaces, the head unit presents a digital avenue through which modern navigation tools—such as Google Maps, WAZE, and Apple Maps—function efficiently, facilitating fluid transition from personal devices to well-integrated in-car navigation. Consider a comfortable dinner gathering with family or friends; upon deciding spontaneously to visit another location afterward, the phones used at dinner quickly and wirelessly load previously planned routes onto the car’s displayed CarPlay or Android Auto maps. This harmonious play of smartphone-to-head-unit connection minimizes complexity, allowing uninterrupted relational moments to meld gracefully into straightforward travel arrangements.
For added levels of safety and reassurance, an optional 1080p HD camera upgrade, featuring front and rear perspectives alongside recording capabilities, expands driver confidence through enhanced visibility and valuable event documentation—particularly useful during unpredictable driving situations and providing added assurance through recorded evidence.
Family-friendly entertaining enhancements further underscore the Brummstadt system’s versatility. Integrated USB ports enable multiplayer gaming scenarios, offering passengers interactive enjoyment during extended drives. This elevates driving time beyond the traditional travel concept, facilitating memorable, enjoyable interactions among passengers.
The head unit’s exceptional voice-activated functionalities enrich usability even further. Integration with intelligent voice assistants such as Siri or Google Assistant transcends mere media control or hands-free phone operations; it empowers situational interactions with smart home devices depending on the owner's preference. Practical applications transform the daily drive, allowing conveniences such as activating exterior home lighting remotely by merely speaking voice commands mid-journey—efficiently uniting vehicle technology directly with household routines and real-world activities to simplify daily living.
Jeep Grand Cherokee WK2 Advantages and Driving Experience:
From its inception, the Grand Cherokee WK2 series attracted loyal admiration with industry-leading off-road capability, expressive V6 and V8 engine varieties, sophisticated suspension systems, quiet interiors, and luxury-level finishes unrivaled in its class. Drivers commended the vehicle’s unwavering confidence, whether navigating rugged terrains and unpredictable weather or smoothly traversing urban streets and highways.
Its compelling combination of robust capability and luxurious refinement is amplified significantly by integrating leading-edge infotainment and technological solutions. The choices made by discerning drivers to introduce modern multimedia capabilities and driving assistance accessories into the vehicle underscore an increasingly mobile, technologically aware culture. Equipping the Jeep Grand Cherokee WK2 with thoughtfully selected aftermarket enhancements reinforces appreciation for thoughtful design blending seamlessly into personalization, fostering profound pride, ownership satisfaction, and deeper connections with the vehicle itself.
In essence, fashioned through decades-long progression and adapting directly to refined customer expectation, the Jeep Grand Cherokee WK2 from 2014 through 2020 powerfully exemplifies automotive excellence—merging trail-proven adaptability, luxury-focused aesthetics, purposeful enhancements, sophisticated technology solutions, and unmatched lifetime versatility.