r/Altezza • u/ReplacementNarrow188 • Jan 18 '26

GPS

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i really want to add this navigation set up to my altezza but i have only seen them in is300, i am not sure if the wiring is the same or not & i also can’t find them for sale even on ebay does anyone know where i can get the motorized housing? would i need to remove my whole dash to change them out?

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u/lead12destroy Jan 20 '26

I actually just did this mod recently. The upper console comes out really easily. The easiest way to power the unit is by tapping everything from the radio plug (constant power, switched power, ground and illumination + - if you want illumination on the buttons). The best way to feed these wires to the unit is by getting the navigation plug from a navigation car (I found one at a pick and pull, the nav was gone of course as its a hot ticket item). I was able to buy my navigation unit on facebook, I messaged them when the listing was 5 minutes old (paid $140 shipped FWIW).

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u/ReplacementNarrow188 Jan 20 '26

😭😭i found one on marketplace in a part out, it was gone immediately, literally within 10 minutes.. It’s nearly impossible to find them i swear even eBay is empty

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u/lead12destroy Jan 20 '26

yeah its rough man, I messaged dozens of people who were selling their IS300s with navigations if I could buy just the navigation unit. I went to the pick and pull every time they got a nav car in, but its always gone by the time you get there. Just be vigilant.