Hi,
New member with a stock 2006 LT sedan. Just bought it last week.
Question: How do you remove the OEM antenna cable from the antenna mast bracket? Snapped the antenna of inside the bracket trying to remove it. I would like to replace the antenna with OEM or similar but do I need to buy new cable too or does the cable come lose from bracket?
Thank you in advance.
crunchman

I did mine a few years ago, but I don't remember it being particularly difficult. Just fold back the carpet in the trunk (unscrew the plastic threaded bolt behind the tail light). There are 2 10mm (I believe) bolts holding the bracket to the frame. The antenna cable just pulls out of the assembly (in the 08, at least). I just used needle nose pliers and grasped at the top of the cable and gave it a tug. Modern Performance has a cool shorty antenna that you can buy for $20, and you can find the bracket at a ton of different GM part sites.

stratosproject,
Thank you for the reply.
The cable did twist in the assembly but I did not pull on it. I will try that tonight.
Do you have to remove the shorty antenna @ the car wash and is there any lose of reception on the stock head unit?
Thanks again,
crunchman

No you don't have to remove it for car washes but there is some loss of reception. I didn't notice it so much when I lived in the Detroit area but when I moved to a smaller town I noticed it but it doesn't bother me.

Preliminary Procedures
Remove the right rear compartment trim panel.

1 Radio Antenna Bracket Assembly

2 Antenna Bracket Assembly Nut

Tighten
9 N·m (80 lb in)

3 Radio Antenna Bezel

dondiego,
Thank you for your reply and Coby7 thank you for the diagram. Like stratosproject said above, the (female) antenna wire did pull free from the (male) bracket assembly. All I will need to purchase is the bracket, bezel and the cool shorty antenna from modern performance.
Thank you all for your timely replies and good advice.

History: 2006 cobalt LT sedan. Blue Granite Metallic. Alloy rims.
This is a car for my 16 year old son that I am trying to convince him that a cobalt is a cool car, great on gas and a solid 2.2L engine. The car has 96,400, one owner who took it to the dealer every 3500 miles for oil changes and rotated the tires every other. She had all the recommended service done at same dealer. (non smoking female)
My mechanic told me it is solid with no issues other than one shock is leaking and the gaskets are gone from the top of the struts.
Drives nice, one small pea sized rust spot on bottom of front doors and interior door lip and rocker panel on one side, is a little rusted (no holes) but not bad according to my body guy. Few scratches but nothing major. Interior very clean, no stains rips or damage.
My old sound system will be going in.
I have a pair of Blaupunkt overdrive 4 way 6x9's for rear (need to figure out how to remove the interior rear deck panel) and a pair of MB Quart PVF 213 US 5 1/4's for the front doors. (I saw another member hid the crossovers under the arm rest) (need to figure out the door panel removal too)
12" Blaupunkt overdrive sub (enclosed in box) for the trunk. I have the distribution block, monster cables, jacks and 100 amp fuse block.
Older pioneer head unit but will probably replace that and need to get a couple amps to power everything. (amps got stolen, Zapco mono and U.S acoustics from old van)
I will have the stereo guy put in the amps and head unit. I think that should raise the cool factor a bit?
Thank you again for your replies,
crunchman

Coby7,
Wow, not only are you excellent, but fast too!
Thank you VERY much for the diagrams. I googled but could not find anything like what you have posted.
This will work out great, you saved me a few broken pieces trying to figure things out. Looks like our weekend is getting busier already.
Thanks again,
crunchman

Edited with more pictures. I would be faster but GM server is slow and it is under weird file format that I have to convert 3 times before I can post it.

Wow, thanks again! This is great info. I only had enough time to print pics and you had posted more.
crunchman