Point 1 gps?

I got a Point 1 gps and put it right over my stern ducer.
My question is, should i use it as a source for the trolling motor too, 17 ft away? Or just use internal gps for TM?

Thanks

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Use it for heading sensor and internal for gps

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Mine is also mounted on the stern above my transducers. I use the Point1 for both heading and GPS on the console unit.
On the bow unit I only use the Point1 for heading and use the internal Receiver for GPS.