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2007 Tahoe and Onstar

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Robert721

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I am sure I have found the Onstar unit under the radio center console but I can not get the connectors off. There is a plastic connectors at the end of the coax. I do not have Onstar and plan to use the 800 antenna on a 996xt. Anyone tried this before?
 

gewecke

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I don't blame you for not wanting to use onscam! You should be able to cut the antenna line and install a bnc for your 996xt. Good idea BTW.
N9ZAS
 

torrespi

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Good ideal ..If it is like my Onstar antenna..( Glass used as conductor ) they are not so hot on tranmit and receive ! ...

I would investigate the power and spec's of what you have on that antenna ( Google it !) and then look at your rig specs as far as power settings and etc !


Good luck...
 

gewecke

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Good ideal ..If it is like my Onstar antenna..( Glass used as conductor ) they are not so hot on tranmit and receive ! ...

I would investigate the power and spec's of what you have on that antenna ( Google it !) and then look at your rig specs as far as power settings and etc !


Good luck...
You might re-read the op's post. He's not using the antenna to transmit. It's for his 996xt uniden scanner.
N9ZAS
 

N467RX

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My OnStar unit (04 TrailBlazer LT) has some plastic tabs attaching the cable to the unit, plus the usual SMA (I think) connector.
 

MPFD535

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Careful right under the console is the air bag control module, just a heads up if your under there, Is your onstar antenna the on glass or the little stubby roof mount, I have the roof mount one and would love to try that for my scanner
 

Robert721

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My Onstar is on the roof left side. It looks like the box is on the bottom of the radio and Ac stack in the center. Next problem is figuring out how to program the radio with Proscan and the Radio Ref site.
 

mobile1

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I am sure I have found the Onstar unit under the radio center console but I can not get the connectors off. There is a plastic connectors at the end of the coax. I do not have Onstar and plan to use the 800 antenna on a 996xt. Anyone tried this before?
The plastic connectors have a small ribbed tab that you push in to remove them. The purple one is for the phone and the blue one is for the GPS. You can not unplug the other connector from the OnStar without the check engine, ABS and other lights coming on and staying on. Also you should remove the fuse for the OnStar unit first. I have hooked up a Uniden scanner to an OnStar antenna so I know this works.
 

Robert721

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They must have a special tool to use on them. I have pushed in toward the box, down on them and I can't get it to move. Killing my fingers!
 

mikepdx

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Excellent idea Robert721

maybe these sites could help:

Hacking OnStar

and

Tap into OnStar

If you still can't get it, there are several forums around
with folks glad to answer questions about "unconventional"
uses of OnStar, including the dismantling and removal of them-

Good luck.
 
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Robert721

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Still can't get the antenna connection loose. So tempted to cut it and install my own connector!!!
 

mobile1

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Still can't get the antenna connection loose. So tempted to cut it and install my own connector!!!
If you want more information on this connector just do a Google search for: FAKRA connector purple/blue
 

N2JDS

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While you're hacking at OnStar, figure out how to exploit the GPS that might be in there too. I've also seen post in other places where people have used the GPS for their own systems, would be cool with the 996XT. Also, some have been able to in the past, hook their own phone up to OnStar to use the handfree feature, but that was in the past, may not be able to do now days. Send updates and pics when done, as well as a step by step how to, so we can learn from your hard work.
 
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