OEM Navi Bypass

[Rick]

Originally Posted by rjmoose

Hi guys...tried to search, but came with zero results:

Do you know if you can "bypass" the system and use the NAVI while moving/driving or do you have to have it in park to input addresses and POI? Thanks, Ron AKA rjmoose

You've probably already read about this but most aftermarket NAV systems have a wire that goes to the brake. If you ground this wire to the firewall instead it fools the system to allow you to program it on the fly.

thanks that great, it seems the Pioneer AVIC Z1 probably the best out in the market, does it have tv tuner?

if so, ill probably spend more and get that one.... the Pioneer AVIC Z1

thanks, ill read more about it...

[Scott D]

The AVIC- Z1 dose not come with a TV tuner, you have to buy that separate. I asked the pioneer dealer that installed my unit about it and he told me the pioneer brand cost about $400.00 and isn?t very good( lots of snow, grainy picture) and then he said there is a non pioneer brand for about 250.00, some a little cheaper, that?s even worse. Then he said to me ?Why do you want to spend that much money to watch TV and get three channels, four if your lucky with bad reception when you have a built in DVD player?. What he said made sense to me, so I never perused the issue. But I think at lot has to do with your topographical location, i.e. tall buildings, trees, mountains, etc?

Also remember unlike your home TV antenna it?s going to be nearly imposable to tune the antenna mounted on a moving vehicle. Even when parked your reception is always going to be changing due to your surroundings.

If you?re really interested in watching TV I would look into mobile satellite TV for vehicles. I?m not sure on the actual name, but I?ve seen it at the auto accessory stores. It?s a petty big box that mounts to the roof rails. Not sure on the price, I want to say its a couple grand but I?m not positive. I?ve only seen two around town. Not sure if they were local or just passing through. One was a Navigator and the other was an Escalade.

I know there?s a few people on this forum that have the AVIC-Z1, not sure if they have the TV tuner and how its working out for them, it?s wroth asking. If you can, try and find someone that has the TV tuner installed and ask them how happy they are with it, because my experience (except my dealer he seemed to be very honest with me for some reason) is that the dealer or retail shop is going to tell you how great it is just so they can make a sale, which you can?t blame them to much because that?s how many of them make a living. All im saying is be a smart informed consumer before you buy. Research, Research, Research!!!

[f5fstop]

Originally Posted by Rick

You've probably already read about this but most aftermarket NAV systems have a wire that goes to the brake. If you ground this wire to the firewall instead it fools the system to allow you to program it on the fly.

Not true for the AVIC Z1, earlier models took a flasher module built wired into the illumination wire, newer models require a wire to be added. But, the lockout features can be bypassed.

[Boar-Ral]

You can use the factory navigation system by installing a switch on the VSS (Vehicle Speed Sensor) wire going into the back of the headunit.* You could simply disconnect it, but you will lose some accuracy doing this.* There are a few writeups on the internet showing you how to do this.* Here is one on CAFCNA.* If you search there for VSS, you will find about a half-dozen other writeups on it, with lots of information.

[f5fstop]

Originally Posted by Boar-Ral

You can use the factory navigation system by installing a switch on the VSS (Vehicle Speed Sensor) wire going into the back of the headunit.* You could simply disconnect it, but you will lose some accuracy doing this.* There are a few writeups on the internet showing you how to do this.* Here is one on CAFCNA.* If you search there for VSS, you will find about a half-dozen other writeups on it, with lots of information.

You can try this, it MIGHT work, and it will not take that long to try it out. But, the newer vehicles with the new style BCMs are controlled differrently. The H3 has the latest BCM model, and does things a lot differently.
So, the question is does the nav use the VSS for accuracy as well as lock out of the features, or on the H3, does it use it only for accuracy?
Again, I have no idea, but it might be worth a try to see if it works.

[Waiting on my Black H3]

There is a bypass so you can use Nav on the run. Go to the Tahoe forum and you will find part number to buy. tahoeforum.com
I have been interested myself. Have a 2006 H3 since July 05, and now wanting to purchase a new Black 2007 H3 with factory Nav. ALso want to hook up a rear camera to it like the Tahoe has from the factory.

[HummerNewbie]

Originally Posted by Waiting on my Black H3

I have been interested myself. Have a 2006 H3 since July 05, and now wanting to purchase a new Black 2007 H3 with factory Nav.

Are you going to Dew Hummer's Happening in late October?

[Boar-Ral]

Originally Posted by Waiting on my Black H3

There is a bypass so you can use Nav on the run. Go to the Tahoe forum and you will find part number to buy. tahoeforum.com
I have been interested myself. Have a 2006 H3 since July 05, and now wanting to purchase a new Black 2007 H3 with factory Nav. ALso want to hook up a rear camera to it like the Tahoe has from the factory.

I do not know if it is the same thing, but I have heard of a company called Lockpick that makes a device that you connect to your factory headunit to allow you to use navigation and DVD functions while moving.* It might be similar, and might be worth checking out if a VSS bypass doesn't work on the newer headunits.

[rjmoose]

Well, here is what I came up with:

http://www.coastaletech.com/GMLOCKPICK.htm

It looks like it might work although they do not specifically mention that it will work on a 2006 H3 OEM NAVI.....I e-mailed them to find out. As soon as I get an answer back from them, I will report back to you guys.

Regards