Denali Soundbomb Mini on F650GS: Do I need to upgrade wiring or install a relay?

Discussion in 'Thumpers' started by Anby, Sep 19, 2020.

  1. Anby

    Anby Been here awhile

    Feb 19, 2018
    Germantown, Maryland, USA
    Hi everyone,

    After being fed up of the stock horn on my motorcycle I purchased a Denali Soundbomb Mini horn (with the BMW wiring adapter). This looks like plug and play in place of my stock horn. As far as I know, the stock horn draws 3 Amps, while the Denali draws 5 Amps.

    Will the stock wiring be able to handle the excess current through it, or do I need to change it ? Additionally, I have seen some people mentioning installation of a relay with aftermarket horns drawing higher current. Electrical stuff is a little confusing to me. If I do need to install a relay, then what should be the spec of the relay?