DIY - Nav System Conversion

HotKgon

How did the install go on an Australian model?

I'm also from Australia and I am looking at doing this install as well.

luisr616

is this still the only way to do this conversion?

VABAM

Yes, as far as I know. Once you have converted the HVAC controls you can do what ever you want to the center console. You can go extreme and make something like what scope22 did or just install the standard cubby and a 2din radio.

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radensb

Anyone have any luck sourcing the M67 pigtail?

What about 3D printing one?

VABAM

Follow the link in the post above.
"10 Position .025” NH Connector"
That's what I used to make my own pigtail.

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radensb

Got it! Thanks!

There is another option that I have been playing with, but it is still in its infancy. It involves using a microcontroller and some code to communicate on the CAN Bus. There is a very nice install that is demonstrated in this video which shows an Android app overlayed on the screen that provides the AC controls.

The above install requires an Arduino programmed to communicate to an MCP2515 CAN to SPI interface. The firmware project is here and the Android app project is here. Currently, the niscan project only works for the 370Z () but can be modified to support other vehicles.

Going this route, you can keep the CAN based AC amp and use the above firmware project to mimic the CAN based AC controls. This eliminates a bunch of splicing and opens the options for custom mechanical controls. I believe that this will lead to much more flexibility in custom moves away from the stock Navi. My only concern is if playing with the CAN Bus and potential corrupting traffic needed to properly operate the vehicle. Perhaps this isn't something to be worried about. I am still wrapping my head around the technical details and going over the code.

NoSlack13

I can't find mention of the ac temp amp Auto Amp part # 27760-1EA0A in anything related to the 2015+ (I have a 2018) do i need this part for this conversion in the 2018?

really appreciate the help.

scope22

if you're converting from nav to non-nav then yes you need a new AC box, you need one for base model/non nav and the model number you have is correct, you will also need AC controls for non-nav model.

Buzzkill247

VERY interested in this approach for many reasons.

gbrettin

Subbed

Sent from my SM-G930P using Tapatalk

dts3

Nice write-up, thanks for that

Bonus points for the longest disclaimer that I've ever read in a forum post.

VABAM

Considering how many people I’ve helped correct their wiring the disclaimer was a good idea. Couple of them were stupid lucky they didn’t short something out.

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jax4557

I have a sport model and I am looking to use an Arduino and custom code to control the AC from a center moutn tablet and delete the controls from my dash. Would it be possible for me to swap my ac auto amp out for a navigation ac amp and be good to go for canbus control? If yes is it this straightforward or will I need to mess with wiring.

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BP Precision 6766 - E85 - 620hp / 550tq

2SIC4U

Here is the fix to get the rear defrost working.

DIY – NAV System Conversion with working rear defrost