Oem Navi Gs300?

[epic1si]

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..

[navguy]

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

Microphone

Parking Break

Different amplifier

GPS antenna

Navigation computer

Navigation monitor

Steering wheel controls for voice

Go aftermarket... much easier.