Results 1 to 3 of 3

Thread: Helix Cap 33 Noise Supressor

  1. Back To Top    #1

    Helix Cap 33 Noise Supressor

    My van has two big batteries as stock from the factory. One is the starter battery and the other is the accessory battery. I presume it has a fairly high output alternator to supply them. The amps, helix DSP and HU are all wired directly to the accessory battery + / -

    When the lights and heated seats are on or the cooling fans kick in there's an awful alternator whine.

    I'm thinking of getting a Helix 33 Cap which connects directly to the alternator + terminal and then down to the chassis earth.

    Has anyone used one? Does it work? Or do you have any other suggestions?

    TIA

    Sent from my SM-G988B using Tapatalk

  2. Back To Top    #2

    Re: Helix Cap 33 Noise Supressor

    how well are the batteries grounded together?

  3. Back To Top    #3
    Noob JayinMI's Avatar
    Location
    Flushing, MI
    Vehicle
    2015 Mazda 6i Touring
    Posts
    551
    Join Date
    Oct 2014

    Re: Helix Cap 33 Noise Supressor

    Quote Originally Posted by chilly View Post
    My van has two big batteries as stock from the factory. One is the starter battery and the other is the accessory battery. I presume it has a fairly high output alternator to supply them. The amps, helix DSP and HU are all wired directly to the accessory battery + / -

    When the lights and heated seats are on or the cooling fans kick in there's an awful alternator whine.

    I'm thinking of getting a Helix 33 Cap which connects directly to the alternator + terminal and then down to the chassis earth.

    Has anyone used one? Does it work? Or do you have any other suggestions?

    TIA

    Sent from my SM-G988B using Tapatalk

    I had never heard of this particular product, until the other day when I saw a video where Dan Ungaro was doing an install in a Porsche Boxster at EAS.

    Jay

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Back To Top