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Oem Navi Gs300?

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  • 3 weeks later...
Just wondering if anybody has installed factory navi unit into a gs300 non navi without having to replaced the complete dash harness..

I can't seem to find any help on this or a how to thread..

Almost impossible since the vehicle harness (without navigation) is missing so many inputs/outputs/parts:

Speed Pulse


Parking Break

Different amplifier

GPS antenna

Navigation computer

Navigation monitor

Steering wheel controls for voice

Go aftermarket... much easier.

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