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Install Garage & Help Desk You've got the radio, now which cable goes where? Got questions about factory installed radios in your car? Ask any installation or help questions here and someone will get to you soon.

 
 
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Old 11-07-2006, 03:19 PM   #1
SubSonic
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Join Date: Jun 29, 2006
Location: Raleigh NC
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Question 2006 Chevy Colorado w/OnStar

I recently added a 2006 Chevy Colorado Crew Cab to my personal fleet and want to hook up my Sirius S4 in it. I found a thread here thru search about a 2005 Colorado, but that install was on what appeared to be an aftermarket head unit and was non-OnStar as well.

Some facts:
It has the Sun/Sound package (sunroof and in-dash 6 disc changer/XM Radio factory system - I list the option package by name for reference to GM gurus)
It has OnStar (and I use it/and its phone system)

Questions:
Since I have to stick with this head unit to retain OnStar functionality, I need to know if anyone here knows what sort of FM modulator this type of unit requires. I've read that some GM factory units require an adapter to use an FM modulator, and wonder if anyone knows if this unit is one of those that doesn't use a "regular" antenna input.

I think I can come up with a cradle arrangement in/on the floor mounted storage caddy to actually mount the dock, power is not issue either - I can figure out a nifty way to do that, and I (after installing the S4 in my Tundra) can route the microdot antenna up and out the 3rd tail lamp, but I am not sure about the FM modulator, and am sure that is the only way I can connect the S4 to the existing HU. Ideas? Facts from the informed?

I am not interested in hijacking the built-in XM antenna, just yet anyway. Just looking to see what I'd need to get around using the weak, very weak, FM transmitter in the S4.

Thanks.
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Old 11-28-2006, 10:21 AM   #2
SubSonic
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Since no one chimed in, thought I'd reply to myself in case anyone else with the same vehicle looks for the info some day:

To use the FM modulator with the radio in the 2006 Colorado, you do need the adapters for the antenna. The stock antenna wire is the smaller "barbless" type, and you need an adapter to make the antenna fit into the modulator and then an adapter to make the modulator fit back into the radio.

This isn't that big of a deal honestly, it gives you enough extra "play" to be able to pull the modulator down to where the ash tray would've been (it's hidden behind that big plastic center panel, above and to the left of the power outlets) and zip tie it in place so it won't rattle in your dash.

Modulator works great, sounds about as good as it can I imagine. Not quite as clean as a direct audio-in like I have in my Tundra, but darn close enough. Besides, it's not like Sirius (or XM) is anywhere near CD quality to begin with.

Other notes: The antenna wire easily can be routed thru the 3rd tail lamp, along the headliner and down the sides. There's plenty of room to pass it through the tail lamp after you remove it. The rubber gasket is not so tight to prevent a good seal once it is reinstalled.

I used the Akron "passenger seat bolt" gooseneck mount for the dock. Works great, and allows enough mounting options/angle to work for most anyone I'd imagine. I am still tweaking the position, but it is going to work just fine. FYI: The Colorado seat bolts are 18mm. I only had 17 and 19 at the outset, but finding an 18mm will help you along greatly.

If you're like me and have a Colorado with the bucket front seats and the center console, then you'll find that under the console provides a lot of space to hide the modulator wire, the power wire, and even the antenna wire if you don't want the extra length left under the passenger seat.
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Old 12-15-2006, 04:08 PM   #3
Skylooker
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Quote:
Originally Posted by SubSonic
To use the FM modulator with the radio in the 2006 Colorado, you do need the adapters for the antenna. The stock antenna wire is the smaller "barbless" type, and you need an adapter to make the antenna fit into the modulator and then an adapter to make the modulator fit back into the radio.
I just noticed that in my '06 Equinox. Do you know where I can get those adapters? What are they called? Thanks!

Other than that, the Stratus is cool. It matches the interior of the Equinox almost perfectly.
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