Got a Faria GPS speedometer to replace existing. Fits perfectly in the dash BTW. Only question is wiring. Instructions says lights (check I assume same blade connector as existing). 12v ignition wire (check purple wiring previously hooked up to speedo) ground check. Now here is where I need help, it calls for a constant power source to the battery what wire can I use for this? The guy who owned the boat before me had his fish finder spliced into an orange wire would this work?
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