APM v2 and external GPS voltage

Hi,

I would like to plug an external GPS on a APM v2.

I plan to disable the embedded Mediatek GPS and to plug a uBLOX MAX-6 breakout

(http://ava.upuaut.net/store/index.php?route=product/product&path=59_60&product_id=68)

I would like to know if voltage fo

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