5 pin din plug wiring

[loopy]

I have a 2004 1800 Goldwing.
I have purchased 2 x 5 pin din plugs and also radio earpieces for 2 helmets. I don't wish to have complete intercom only radio reception in the helmet earpiece.
I wish to wire up the 5 pin din plugs to receive the radio thru the bikes 5 pin plugs.
Can anyone assist with the wiring of the din plug as to wish pin transmits the bike radio please.

[Chappie]

This might help

[keithg64]

Here's another view.

https://www.goldwingfacts.com/forums/2- ... ayout.html