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All you need is a 4 conductor shielded cable which is easy to find. For mic up/down, PTT, and audio only uses 3 wire connections. You could use the 4th wire in the future if you decide to add another button for the user programmable features.

The switches can be internal if your mike has room or make an external box.

[QUOTE="fourstringburn, post: 853081, member: 2920"] All you need is a 4 conductor shielded cable which is easy to find. For mic up/down, PTT, and audio only uses 3 wire connections. You could use the 4th wire in the future if you decide to add another button for the user programmable features. The switches can be internal if your mike has room or make an external box. [/QUOTE]

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