The ZeroNoise 6400013 is a 15 cm coiled adaptor with a male 4-pin Nexus plug at one end and a male 5-pin Nexus plug at the other.
The male 4-pin end goes into a female 4-pin socket, and the male 5-pin end into a 5-pin radio socket. ZeroNoise uses 4-pin Nexus for intercom helmets and amplifiers and 5-pin Nexus on the radio side.
The 6400012 does the same job with a female 4-pin end. Radio wiring varies between systems, so tell us the radio and the amplifier or helmet and we will confirm the right lead before you order.
What does this lead join?
A female 4-pin Nexus socket to a female 5-pin Nexus socket, on the radio side of a system. Tell us the radio and the amplifier or helmet and we will confirm it is the right lead before you order. Our ZeroNoise intercom compatibility guide shows every pairing.
My intercom crackles or cuts out. Is a new lead the fix?
Often, yes. Leads live a hard life being trodden on and trapped in doors, and a damaged lead is the most common cause of noise or dropouts. If a replacement does not cure it, talk to us before replacing the amplifier, as it may be a connector or helmet-kit fault instead.