ICOM Remote Speaker Options

[LoTech]

I would like to connect the ICOM IC-M604 VHF Radio to an external, remote center channel (voice) speaker that has the standard 'banana jack' inputs. The manual says the radio has an internal 30 watt amp and both 5-prong (???) and 3-prong hailer, foghorn or RX external speaker-out jacks (???).

This has me very confused as I have never seen a speaker or speaker cable that utilizes 5 or 3 prongs.

I've done a keyword search for "NMEA speakers" and "RX-speakers" and "RX audio jacks," etc. etc. and have come up with NOTHING. No speakers and no wiring for speakers. Can anyone help me with this? (I'm sure it's real easy when you know how, and no, I don't want to use ICOM'S external speaker.)

(You need 10 posts before you can post an image or a link. Bummer. But you can see the back of the radio at the ICOM website if you care to bother.)

[sailingdog]

It should have come with a pig-tail for the Hailer and Speaker plugs that you can wire up.

[camaraderie]

The FIRST plug (6 pin) to the right of the power connection is the external speaker plug but it also serves as a NEMA/GPS connector. There is an accessory 6 pin plug packed with the unit. The Center Pin is the speaker + connection and the farthest upper right pin is the speaker negative.
Should you wish to use the hailer connection there is also a 3 pin plug supplied for that...the top two pins are + and - respectively as you look at the back of the unit left to right.
All of this is detailed on page 46 of the owners manual which is available on the Icom site.