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Found 14 results

  1. Hello! I have a Sierra Denali 2019 6.2L - I apologize for not knowing much as I got the truck from my brother and never owned a truck before in my life! I would like to install two antennas on the rear stake pockets and bring the coaxial cables into the cabin. cables are 1/4 inch each. There is a also a small control cable for the tarheel antenna. I don't plan to connect the radios to the Car Batteries as I have separate batteries for radio use. I would like to know if there are some sort of documentation or drawings that shows where I can check for the cable entry points to the cabin from the rear to bring these cables into the cabin and the precautions I need to do and best practices to seal the entry points to prevent dust and stuff. any help would be appreciated. Thanks...
  2. Hi, I like to install two antennas in my 2019 Silverado Crew Cab I'm looking at no-drill mounts was looking at the Valley Enterprises Fender Mount Antenna Bracket 3/4 Inch NMO for Chevrolet Silverado and GMC Sierra 2019-2021 but wanted to ask if anyone found a coax cable route that does not require any drilling thru the firewall? any help would be Appreciated
  3. Recently I noticed my navigation not working in my 2016 Sierra Denali. The GPS has a red X over it. I have done some research and most people are saying the green onstar light on the rearview mirror turned red when they had an issue. Mine is still lit green but no GPS signal. Can anyone point me in the right direction for a fix?
  4. Ok so I want to put a post together about the onstar, XM, sharkfin, and whatever else antenna we have on the K2xx platform. I know there have been water leaks plaguing all years from 14-18. All the posts here I have seen, don’t really have any info or “the dealer fixed it”. A lot of people have commented that there is a break in the seal in the rear of the antenna. Please understand that is not a water seal for water intrusion into the cabin. That is only a rubber trim from the plastics of the antenna to the metal roof skin. There is a foam seal that goes around the wires and the mount that does all of the sealing of the elements. When the foam seal deteriorates is when the water issues start. I will explain with pics a little further down in the post. So I have a 14 Denali, vehicle was Daily driven, until 2 months ago, has 90,xxx miles on it, sat out side during the day, and garage kept at night. I have never had any water issues from the antenna (or the 3rd brake light for that matter) Here you can see the square seal around the home in the roof was still sealing with no issues One of the reasons this post happened was because I found a color matched shark fin brand new for VERY cheap. And my Denali has the black plastic fin from the factory.
  5. By: Zane Merva & Matt Blouin GM-Trucks.com Staff Copyright 2015 Parts & Tools Needed One (1) 11mm fine thread bolt with nut One foot of 12-gauge wire Two (2) crimpable eye fittings Shrink wrap Zip ties Socket Set Pliers Wire stripper/Cutters Estimated price: $12.00 Time to complete: 30 minutes What is It? The relocation of the antenna from stock placement to under the hood for a cleaner look. Skill Level Beginner Warnings and Precautions This relocation will reduce your ability to pick up AM/FM signals. We performed this modification for aesthetic purposes only. OnStar and SirusXM reception will not be affected. Performed On 2011 GMC Sierra 1500 Extended Cab SLT Step One The first step in any project is to prepare your work space. Gather the required tools and safety equipment. Park your vehicle in a place where you have adequate light and you won't have to move it for the duration of the project. Step Two Unscrew and remove the antenna with a small wrench or pliers. Use a rag or paper towel to protect the antenna and prevent scratching the paint in case you want to return it to stock in the future. Step Three Carefully remove plastic trim panel that covers antenna stud. You can pull this piece off with your hands but don’t use too much force or you risk breaking it. Step Four Cut a section of 12-gauge wire approximately one foot in length. Strip about a quarter of an inch off each end. Place two sections of shrink wrap on the wire then crimp the eye-terminal onto the ends of the wire. Heat the shrink wrap to ensure proper seal. Step Five Place the eye-terminal on the 11mm bolt and thread it into the open end of the antenna and tighten down with socket wrench and hold antenna in position with pliers, again being careful not to scratch paint off. Step Six Place antenna under hood in desired location. We chose to relocate under the fender pinch rail next to the battery and intake. Step Seven Route wire up to antenna post being careful to avoid areas where it may pinch. Place the eye-terminal over the post and tighten down with the 11mm bolt. Step Eight Secure antenna with zip ties making sure it is tight to mounting point so it will not move around under rough conditions. Step Nine Place plastic trim panel back over antenna area. Optionally, cover hole with rubber plug, cap, or tape. We've got various sized plugs on order and will update this article if we can find a good fit to cover the left over hole. Conclusion This is an easy and cheap modification to clean up the exterior look of your pickup. Our 2011 Sierra looks way more modern without the ugly mast poking out of the hood. The downside to relocating our antenna is greatly reduced reception. That said, we live in a rural area where reception wasn't great to begin with. Stronger signals in urban areas still work but range you can travel from the station will be limited. Since we rarely use the radio and almost always stream music, this isn't an issue for us.
  6. We we had some strong storms roll throught the DFW area yesterday for a while. When I finally got out to my truck, there was a nice puddle of water sitting in my All Weather floormat. Now I know why GM sells these - to keep your carpet dry from the leaky roof! There was several ounces of water down there = a large puddle. I traced it up the inside of the dash, up the A-pillar, and to a wet headliner. NOT HAPPY!!! This is the second time this has happened in my new truck. The first time was a few months ago and only a little amount, so I thought it might have been a fluke. Though I did bring it to the dealership to have them look at it. They spent at least an hour in the water bay, most of the time with me helping, trying to find a leak. They first suspected the sunroof drain, but rulled that out after several tests. Then looked around the front window, but couldn't find anything. But the window couldn't be the cause with the location of the wetness in the headliner without a strong headwind (like while driving). Both occurences have been while parked at work for a long period of time. Then I mentioned reading some issues with the OnStar antenna, so they ran a strong hose right up on it for several minutes - nothing. I told them I'd keep an eye on it and come back. Obviously it wasn't a fluke, and obviously there's a problem. Does anybody know what's going on? Why is there a gap in the OnStar antenna seal? For those that have had this fixed, did the dealership do anything different than just replace the antenna? Is there a new/better antenna design? Did they apply additional sealant? Is GM doing anything to address this? Has anyone applied sealant to the gap to fix this problem themselves? When they were looking for my leak, the did partially drop the headliner to inspect the underside of the roof. The antenna was installed tightly. I'm just curious if anybody knows what the real problem is? Or what the real fix is? Thanks.
  7. 2014 Sierra SLT My reception was pretty bad in certain spots with certain stations. I had these dead spots during my commute that would get nothing but full static or 75% static to the point where i had to change the channel or just turn the damn thing off. I was at walmart buying oil and saw this antenna and said what the heck, i'll just return it if this one doesnt work as well. I had tried couple other antennas before and it was worse than stock. Let me tell you, this thing got me full HD signal even in those dead zones, i was amazed! Its a soft mast crappy feeling universal antenna that is $9 but this thing works!! Give it a try. I used the bigger universal mount that gets tightened with screws to the original mount. I didnt use the cable or anything else. Figured i share since i know how frustration it was to have crappy reception. We will see how it will hold up against the car wash later this week.
  8. Hello new to this site. was wondering if anyone had done a power antenna conversion on an express van, and if so where did you buy it? thanks.
  9. Im hearing a whistling noise coming from right above the driver seat when at freeway speeds. Is anyone else having this problem?
  10. Hi all, new owner here. I bought a new 2018 1500 about a week ago and it barely fits in my garage, both in length and height. But it fits, so that's fine. However, every time I pull in, my radio antenna hits the garage door and bounces around. I feel like it's eventually going to work itself lose and I don't want it leaving any scratches on my (brand new) garage door. Are these antennas standard in any way? Can it be replaced with a shorter one? I don't care if it degrades the signal as I never listen to the radio anyway. I've seen the "stubby" antennas mentioned a couple times but I don't like it. Autozone's website shows a bunch of replacement masts but I can't tell if they actually fit my truck. New truck pic just because
  11. 2015 Sierra All Terrain: A couple months ago, my nav started going haywire. Shows me driving through anything and everything, my screen on my dash in the lower left corner shows CAL. When I took my truck in for a different recall issue, I had them address this issue. They told me that it was my shark fin antenna, that there has been moisture that has gotten underneath it. I would need to replace the antenna and it would fix my calibration issue. But they want to charge $430 for parts and labor..no thanks. Has anyone else experienced this? Have you replaced it on your own? Is it difficult? What's the steps? Thanks in advance.
  12. I successfully routed my CB antenna coax through the rear cabin vent that is located behind the right rear passenger seat. I found this YouTube video by Fondupot's Garage helpful. Easy Rear Seat Removal - 2014-2017 GM Double Cab 1st. Remove the four nuts and two 10mm bolts securing right rear passenger seat in place. 2nd. Lift the seat up so the bracket on the back of the seat is clear of its receptacle. 3rd. Gain access to the vent located behind the insulating material. 4th. Route the coax down between the bed and the cab . I used a closed zip tie to grab the coax connector and pull it through the vent into the cab. 5. Remove the plastic cap in the forward right side of the bed. Route the coax through the bed. My magnetic base antenna just sits in in the bed so it clears the garage door. There is enough slack in the coax to place the antenna on top of the cab for long distance travels. 6. Route the coax underneath the floor mats up to the CB. That's my Uniden Bearcat 880. After the install, I took my other toy out to play in the snow. Cheers to all. I hope this helps.
  13. My factory antenna catches the bottom of my open garage door and drags across a lowered section of the ceiling. The antenna is only about two inches too long. I've looked at replacing with one of those short stubby aftermarket antennas but not crazy about the look and don't want to sacrifice reception. Does anyone know if any other GM vehicle factory antennas, may be slightly shorter and still fit my truck?
  14. I am going to replace my GPS Antenna on my 2015 Suburban LTZ (NO GPS signal on Nav Screen and the service menu shows no satellites acquired) The TSB for this symptom (and other related symptoms that I have experienced so far), calls for Kent High Tech Seam Sealer P10200 or equivalent when placing the new antenna. I cannot find this product anywhere, so I called the MFG - I get no answer - just voice mail after long wait. the more I look into the different (alternative) seam sealers, the less I know. What 'seam sealer' would you GM Techs recommend when replacing the roof mounted shark fin antenna? (also - as long as we are on this topic - any tips or tricks, or should it be straight forward - lower head liner - replace antenna)
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