problem needing sugestions

any ideas on how to transmit from small speaker on gps device to a head inside a motorbike helmet can not hear gps instructions over 60 kmph
thoughts so far include small mike over spkr to amp with bigger spkr could possibly connect directly to spkr wiring have seen thingo that you place over spkr on phone that transmits fm (to pick up on radio)doubt anyone makes similar thingo transmitting bluetooth
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F Murtz wrote:

Start with a bog-standard motorbike intercom, perhaps?
--
SUe

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F Murtz wrote:

Solder a couple of wires to the speaker and take them to a small connector you can plug headphones into.
Graham
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