Onstar Module

ricco · January 12, 2008

I own a 2007 silverado. The free onstar is almost over and was wondering where the onstar module is located. Would like to use the cellular coax cable to connect my own phone to the trucks external antenna. I live in an area of very spotty and poor cell phone reception. Any suggestions.

jrrod2004 · January 12, 2008

This might help:

Document ID# 1839397

2007 Chevrolet Silverado - 2WD

Mobile Telephone Digital Antenna Replacement

Callout

Component Name

Preliminary Procedure

Lower the front of the headliner. Refer to Headlining Trim Panel Replacement .

1

Mobile Telephone Antenna Bolt

Notice: Refer to Fastener Notice in Cautions and Notices.

Tighten

9 N·m (80 lb in)

2

Mobile Telephone Antenna Expansion Sleeve

3

Mobile Telephone and Navigation Antenna Assembly

Tip

Disconnect the antenna cable.

Document ID# 1839397

2007 Chevrolet Silverado - 2WD

ricco · January 12, 2008

That's a start, but would really like to connect @ the module.

99silverado1500 · January 12, 2008

Do you have a diagram of where the Onstar Module is on a 2006 GMC Sierra 2500HD Crew Cab? My father wants to take his out so Big Brother can't watch us.

jrrod2004 · January 12, 2008

I will look, give me a couple of mins

jrrod2004 · January 12, 2008

looked around and the location is not in DealerWorld (at least I cannot find it in the regular places that I look for diagrams)

99silverado1500 · January 12, 2008

Alright, no problem. Theres only so many places that they can put the onstar module. Its a decent sized unit, i think its in the back (crew section), but Ill find it eventually.

ricco · January 12, 2008

Thanks for looking M.Cueva.

Hey 99Silverado1500, look behind your glove box. It may be there. Read that on a Google search, but it wasn't there on my model. Maybe it helps you out.

marko · January 12, 2008

Do you have a diagram of where the Onstar Module is on a 2006 GMC Sierra 2500HD Crew Cab? My father wants to take his out so Big Brother can't watch us.

I think you can disable Onstar with one fuse. At least that's what I'm told by my handheld tuner instructions, which tell me to take out the Onstar fuse before I do the programming. I know which one it is but it's late here and I'm not going to go out into the snow and find it, but your fuse box diagram should tell you which fuse it is. Would it work just to take the fuse out I wonder....

jrrod2004 · January 12, 2008

that would be the quicker way for it to be shut off, but the original poster wants to use the oem antenna

minibike132 · January 12, 2008

I think we are on a wild goose chase here unless you know how to work with the coax they use you are going to have a hard time making the antenna useful for anything other than onstar. That said the module is behind the passenger air bag you need to remove the dash cover to get to it. It's kind of a pain the first time but not as bad as it sounds. I posted full instructions about 2 weeks ago to someone else. If I can find it I'll repost if not search my posts for the last 2 weeks.