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GM Add on XM player for 2003-2004 trucks

Traveling Fox

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Traveling Fox Enthusiast

Traveling Fox

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GM Part # 12498768 is an available add on XM kit for 2003-2004 trucks which are equipped with the RTS XM ready radio head.

 

Seeking feedback from anyone with knowledge of this recently available kit from GM.

 

Estimated manhours to install? I plan to have a dealer do it.

 

Any install issues or problems? Will the computer need to be re-flashed?

 

Will greatly appreicate any replies!!

lrymal Senior Enthusiast

lrymal

Posted
Posted

Easy to do yourself, actually. Took me about 2 hours, and I think 1 hour is a possibility. The instructions are clear. Installing the wiring harness to the radio is simple, assuming you know how to pull the radio which honestly is no problem. A connector is modified, and another connector is added.

 

A template is included which you place on your roof for drilling the hole to mount the antenna.

 

No flashing required, and you call the standard XM 800 number to register. In spite of what the instructions say, you don't have to have this part of the process done at the Dealer.

Traveling Fox Enthusiast

Traveling Fox

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  • Author
Posted
Easy to do yourself, actually.  Took me about 2 hours, and I think 1 hour is a possibility. The instructions are clear. Installing the wiring harness to the radio is simple, assuming you know how to pull the radio which honestly is no problem. A connector is modified, and another connector is added.

 

A template is included which you place on your roof for drilling the hole to mount the antenna. 

 

No flashing required, and you call the standard XM 800 number to register.  In spite of what the instructions say, you don't have to have this part of the process done at the Dealer.

 

 

 

 

Did you mount your antenna centered and just forward of the third brake light?

 

Is that the recommended placement? I was hoping to put mine in the OEM spot. Is that spot O.K. ? I do not have the cab lights on top. (My truck is a 2003 Chev LT 2500HD Duramax/Allison Crew Cab Short Bed.)

 

I greatly appreciate your help!! Best regards, Traveling Fox (from my Arctic Fox 5th Wheel RV)

lrymal Senior Enthusiast

lrymal

Posted
Posted
I was hoping to put mine in the OEM spot.  Is that spot O.K. ?  I do not have the cab lights on top.  (My truck is a 2003 Chev LT 2500HD Duramax/Allison Crew Cab Short Bed.)

 

 

 

All I did was go to the dealer, measured an XM antenna on a truck that was at the parking lot. I mounted exactly at that location.

 

Note the factory antenna isn't in my .sig. Haven't updated my photo in a while.

Traveling Fox Enthusiast

Traveling Fox

Posted
  • Author
Posted
I was hoping to put mine in the OEM spot.  Is that spot O.K. ?  I do not have the cab lights on top.  (My truck is a 2003 Chev LT 2500HD Duramax/Allison Crew Cab Short Bed.)

 

 

 

All I did was go to the dealer, measured an XM antenna on a truck that was at the parking lot. I mounted exactly at that location.

 

Note the factory antenna isn't in my .sig. Haven't updated my photo in a while.

 

 

 

 

 

One more question. What is involved in connecting the roof mounted antenna with the XM module? I have been told that some coax is in the truck and about 12" from where you drill the hole. Is this info correct? Do I need to remove the plastic windshield pillar cover and/or the headliner to get at the antenna connection?

 

Many thanks for taking time to get me up to speed on the GM XM!! BTW, your truck looks good with some nice mods.

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