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Old 07-03-2012, 10:17 PM   #43
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I figured as much on the screws, but I said what the heck, I don't see any close by so I'll use them :-) I'll continue tomorrow and will take the pictures.


Thank you guys for real, and pardon my ignorance
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Old 07-03-2012, 11:57 PM   #44
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Quote:
Originally Posted by SVXdc View Post
Yeah, screws that go into plastic won't work.


Thanks for posting those pictures! Looks like the radio in your BRZ has leads for both power antenna control and amplifier control on the 10-pin harness, and no power antenna wire on the HU's antenna socket.

What is the model number printed on the front of your HU?

Can you take a picture of the top, showing the manufacturer's label? (that will have several model numbers and an FCC ID).
So David, (I'm David too by the way!).

You can confirm that my ground is the pink cable? I will first try to find a ground screw in the area. If not, I'm hooking it up to the ground on the 10 pin. Initially I did not cut the pink cable and connected the gray cable with it, I just put the gray cable on the connector connector and apparently it did not do a good connection. I used to have a multimeter to check the ground location but I misplaced it and have not needed it since. I'll buy one tomorrow.
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Old 07-04-2012, 04:51 AM   #45
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Quote:
Originally Posted by sportsguy83 View Post
You can confirm that my ground is the pink cable?
You're reading the pin numbers mirrored left/right.

The layout in my pin-out post from NASIOC (which xcelir8brz pasted) is looking at the side of the plug with the contact terminals -- the side that plugs into the radio.

Your picture 0091 is looking at the back -- the wires side. Pin 1 is the white wire. Pink is pin 8 (power antenna control). Pin 7 is the ground, black with blue stripe, between the pink and the yellow.

In your picture 0098 there's a nice screw on the top of the HU that should work.
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Old 07-04-2012, 05:47 AM   #46
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Thanks again. I'll report back today with pictures and results.
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Old 07-04-2012, 01:03 PM   #47
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Just an update. For the purpose of what I needed, it did not work. Full Phone functions are apparently tied either to the speed sensor or Gps speed. I tried everything including the ground on the other plug unsuccessfully. I will post pictures when I get to a computer later tonight.
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Old 07-04-2012, 09:47 PM   #48
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Quote:
Originally Posted by SVXdc View Post
What is the model number printed on the front of your HU?

Can you take a picture of the top, showing the manufacturer's label? (that will have several model numbers and an FCC ID).
Here are the requested pictures.

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Old 07-05-2012, 03:55 PM   #49
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VSS switch

Same unit in my '12 STI. So you think this is tied to either the VSS or GPS sensor? I read a post that a guy had a switch installed that bypassed the VSS...which apparently worked:

http://www.iwsti.com/forums/gr-ice-s...ml#post3555270

(it's the 3rd post from the bottom)

Anyways, I'm hoping that someone might have a better understanding of how to do this...I sure as hell didn't.
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Old 07-05-2012, 05:09 PM   #50
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Same unit in my '12 STI. So you think this is tied to either the VSS or GPS sensor? I read a post that a guy had a switch installed that bypassed the VSS...which apparently worked:

http://www.iwsti.com/forums/gr-ice-s...ml#post3555270

(it's the 3rd post from the bottom)

Anyways, I'm hoping that someone might have a better understanding of how to do this...I sure as hell didn't.

They used a diode to send current in one direction but not the other. I am assuming the switch is what "turns on" the diode, which then prevents the Head Unit from receiving a signal that the car is in motion, thus being able to play video while moving faster than 3 mph.

There is more than one type of diode and the person in that posted linked did not mentioned what type of diode the installers used. Our best bet would be to get in touch with that person who got his equipment installed professionally.

Once we know what type of diode was used, then everything gets simpler from there.
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Old 07-06-2012, 05:20 AM   #51
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Quote:
Originally Posted by sportsguy83 View Post
Here are the requested pictures.
...
Thanks!

Model numbers are different, but FCC ID is same as in 2012 Impreza. Means they're using the same BT module with a single FCC approval (not uncommon practice). Unfortunately, that means we won't get any new pictures or documents from the FCC's site for these HUs in other cars.


Quote:
Originally Posted by noonanbobby View Post
Same unit in my '12 STI.
The various Fujitsu Ten nav units (2012-up Impreza, 2012-up Forester, 2013 BRZ, 2013 FR-S) all look very similar, but they all have different model numbers and a few subtle differences when you look close.


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[The shop who modded the FT nav in a 2012 STi] used a diode to send current in one direction but not the other. I am assuming the switch is what "turns on" the diode, which then prevents the Head Unit from receiving a signal that the car is in motion, thus being able to play video while moving faster than 3 mph.
I'm not sure why you would need a diode. You should be able to just cut the VSS wire going into the HU. If you want a switch, wire that between the cuts.

As I said earlier, we need someone to try simply unplugging the factory 28-pin harness and see if that disables the lockouts.

So is video display the only thing that the parking brake lead disables/enables?
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Old 07-06-2012, 05:40 AM   #52
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Originally Posted by SVXdc View Post


As I said earlier, we need someone to try simply unplugging the factory 28-pin harness and see if that disables the lockouts.
I hope someone else tries it.. if not I'll try it next week.

If I had know this I wouldn't have cut the cables... shit
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Old 07-06-2012, 07:20 AM   #53
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If you remove the VSS wire for the HU, then your Navigation performance will suffer. There is likely a pin that you can put into the connector for the bypass and ground that (along with the hand brake signal wire). I don't know which one it is, but I'm sure someone will find it eventually.
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Old 07-06-2012, 08:24 AM   #54
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I hope someone else tries it.. if not I'll try it next week.

If I had know this I wouldn't have cut the cables... shit

LOL

Patience young grasshopper, with time..... with time we will figure this out.

I definitely dont want my NAV to suffer from cutting out the VSS, but I am pretty we'll find out sooner than later.
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Old 07-06-2012, 08:27 AM   #55
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Thanks!


So is video display the only thing that the parking brake lead disables/enables?
Grounding the parking brake lets me watch movies while I am parked without having the parking brake engages, or moving no faster than 2 mph, and before it had to be engaged to watch movies.
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Old 07-07-2012, 11:18 AM   #56
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So im thinking about trying to mess with this after work today.
Heres what im planning:

Cut the grey wire on its own plug and ground that to pin 7 on the 10 pin plug.
this should get me around the ebrake, now I need to get around the VSS

For this I will grab pin 17 on the 28 pin plug and run it to a rocker switch, with this I will be able to cut the VSS signal, allowing me to type in an address/use my phone, then flip the switch back allowing my gps to continue to be accurate.

From what I gathered this sounds like the only way to do it until someone finds a pin allowing us to get around this a different way.

Any other input? other things I should try while im back there?
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