Metra - AXSP-HK - Hyundai/Kia Amplifier Retention Interface 2012-Up

The Metra AXSP-HK Hyundai/Kia Amplifier Retention Interface is a vehicle-specific integration module designed for select Hyundai and Kia models from 2012 and newer equipped with factory amplified audio systems. This interface allows seamless installation of an aftermarket head unit while retaining the OEM amplifier and factory speaker system. It converts the aftermarket radio’s speaker-level outputs to the proper signal required by the factory amplifier and preserves critical audio functions such as balance and fade. Engineered for professional installers, the AXSP-HK is ideal for OEM-to-aftermarket upgrades where maintaining factory amplifier performance and sound tuning is required.

KEY BENEFITS

• Retains the factory amplified audio system in compatible Hyundai and Kia vehicles
• Eliminates the need to bypass or remove the OEM amplifier during radio replacement
• Accepts high-level speaker outputs from aftermarket head units
• Maintains factory balance and fade control through the OEM amplifier
• Vehicle-specific design minimizes wiring complexity and installation time
• Preserves factory speaker tuning and system integration
• Reduces risk of signal mismatch or amplifier damage during installation
• Ideal for professional OEM integration-focused installations

TECHNICAL SPECIFICATIONS

• Weight: N/A
• Dimensions: N/A
• Application: Select Hyundai and Kia vehicles 2012-up with factory amplified systems
• Function: Factory amplifier retention interface
• Audio Inputs: High-level speaker inputs from aftermarket radio
• Audio Outputs: Matched signal output to OEM amplifier
• Retained Functions: Factory amplifier, balance, fade
• Installation Type: Plug-and-play vehicle-specific harness
• Housing: Black interface module

INSTALLATION & COMPATIBILITY

The AXSP-HK installs inline between the aftermarket head unit and the factory audio harness in compatible 2012-up Hyundai and Kia vehicles equipped with OEM amplified systems. It is designed to retain the factory amplifier by properly matching signal levels from the aftermarket radio, ensuring correct operation and sound quality. This interface is best suited for factory radio replacements where preserving the original amplifier and speaker system is required. Adequate dash space and an aftermarket head unit with speaker-level outputs are necessary for installation.

FAQS

• What is the AXSP-HK interface used for?
  AXSP-HK is a vehicle-specific interface designed to retain factory features when installing an aftermarket radio in select Honda and Kia vehicles, ensuring proper data communication and system functionality.
• Which factory features does AXSP-HK retain?
  It typically keeps steering wheel controls, factory amplifier integration, warning chimes, and accessory power, helping the aftermarket radio behave like the original system without errors or signal loss.
• Is AXSP-HK required for aftermarket radio installs?
  In supported vehicles, yes. Modern data-controlled systems require an interface like AXSP-HK to avoid power issues, loss of controls, or malfunctioning factory audio components.
• Can AXSP-HK improve installation reliability?
  Absolutely. Using a vehicle-specific interface reduces wiring complexity, speeds up installation, and ensures long-term reliability—especially when paired with quality install parts from Livewire Audio.