Rugged Radios Active Noise Filter for Radio and Intercom Systems Energy Suspension Does NOT fit vehicles fitted

Does NOT fit vehicles fitted with NPP performance exhaust option with Quad Tips

Three 12 AN Female Forward Pickups

50 Thread O-Ring

1977-1977 Mercury Monarch

Rugged Radios Active Noise Filter for Radio and Intercom Systems Energy Suspension Does NOT fit vehicles fittedHaving noise issues with your radio and intercom setup? Connect the Rugged Active Filter inline with your radio and intercom to suppress noise generated through the charging system power supply. Alternating current fluctuations from any electrical components accessories contribute to communication noise and disruption. Using the simple plug and go Active Filter improves your communication for both your intercom and or radio. Simply install the Filter