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Operates at 0
Next-generation advanced 5-way protection circuitry
Road Glide All - 2014-2021
VAST (Vertical Attach Surround Technique) provides up to 25% more effective radiating cone area
Compact size for easy installation anywhere
PAC AP4-FD21 AmpPRO Car Stereo Advanced Amplifier Installation Audio Interface Amplifier Kits Operates at 0BRAND NEWPAC AP4 FD21AmpPRO Car Stereo Advanced Amplifier Installation Audio InterfaceOVERVIEW: AmpPRO simplifies the installation of upgraded amplifiers in data bus controlled sound systems. With AmpPRO, you can improve audio performance while keeping an original radios fit, finish and features. KEY FEATURES: Variable volume, fade, balance, bass, mid and treble audio settings Front, rear, sub preamp outputs (5 volt RMS) Provides flat audio output for