I've seen a few threads discussing aux lighting and switch options. Search for that send you should see a few hits. This thread is the one that comes to mind that I'm considering myself... https://r.tapatalk.com/shareLink?url=https://www.gm-trucks.com/forums/topic/168371-aux-switch-install/&share_tid=168371&share_fid=33003&share_type=t Sent from my Pixel 2 XL using Tapatalk
I bought some aftermarket LED tails last spring, and love the way they look. The closest model I can find like mine are currently called Axial Smoked (americantrucks.com). I wasn't sure I would like the configuration when I ordered them, but they were the least expensive smoked lens I could find at the time. I must have gotten lucky since those are running twice the price now. As it turns out, they work very well as replacements in my Summit White truck. Quality was good, and my guess is that most will be fine for our application since the tails don't get the pounding that headlights do. My 2016 needed an unusual 3ohm resistance to prevent hyperflash (most need 6ohm) but other than that it's an easy plug and play upgrade. FWIW I replaced the high brake/cargo light with a smoked lens and that one was not as good. Be wary of the model if you choose to do that mod. The truck is REALLY dirty right now (and more snow on the way so it is what it is right now) but I took a quick snap since I couldn't find any of the tail. Sent from my Pixel 2 XL using Tapatalk
1. Yes, absolutely. 2. Nope, no flashing, tho depending on what year/model you have you might need an upgraded wiring harness (available through this thread) 3. Definitely not more trouble than it's worth. I did this swap in a 2016 Silverado LT and am happy with the results. The first post can be a little daunting the first time you read it, but it has everything you need. Also,[mention=159655]pgamboa[/mention] is a huge help. Sent from my Pixel 2 XL using Tapatalk
Great upgrade. So much detailed info to be had here: https://r.tapatalk.com/shareLink?url=https://www.gm-trucks.com/forums/topic/213775-replacing-20-hmi-module-with-25-hmi-module-to-add-carplayandroid-auto-to-2014-2015-silverado/&share_tid=213775&share_fid=33003&share_type=t But yeah, search for MVI for comprehensive details on what is available and what you'll need specific to your application. Odds are with a 2015 LT, you'll need a new radio module and HMI for full AA functionality. You can buy them from 3rd party and have them reprogrammed for your truck (more cost effective, but recommend research or help from CWhite) or buy the full package from MVI. Sent from my Pixel 2 XL using Tapatalk
Mine did that when I installed it the first time. It also threw a CAL error (for CALIBRATE, I think) on the Info screen and showed the message Radio Off. I had to send it back to have it re-flashed with my VIN since apparently the first flash didn't work. Sent from my Pixel 2 XL using Tapatalk
So, almost 3 weeks later and I'm finally up and running! I delayed updating here as I wanted to bring a positive outcome. Unfortunately, the journey wasn't without its problems. The HMI module I ordered was delivered very quickly, but when I plugged it in, it threw a "Calibrate Device" error, and the radio wouldn't start up with it installed. Mike (dokus223) was great to work with, tho, and took the module back, verified that the programming wasn't right, reflashed the VIN and got it back to me. I got it installed tonight and (after a brief red "No VIN" msg pause to make me flinch) it's working great! I tested both AA and ACP and both have full functionality for me. It seems the HMI is from a newer truck than mine since it adds some functions other than AA & ACP. App downloads, myChevrolet connectivity, and WiFi connection to name a few. Wifi connects just fine, but the others I note won't connect. I'm curious to know whether those will even work with my config; any thoughts? No big deal for me since my primary goal (AA) has been met.
Based on what I read previously in the thread, there are a lot of variables, but if you're driving a 2015 or earlier model, you'll need both the HMI and radio modules for full functionality. Sent from my Pixel 2 XL using Tapatalk
I never considered 24's for my truck so had to check out a few pics. Not my thing, and it seems that that would be a terrible experience IMO for towing and hauling. But some of the applications look pretty slick. Guess it depends on what rims and aesthetic you're going for.
In theory, you could wire them into the reverse lights (since those come on as a part of the "perimeter lighting") I guess. The plug for the box lights is in a plug set just behind the spare tire, so you could cut and splice from there to the tail lights. For me, I have a tonneau cover, so I want them to come on when I open the tailgate. I have the lights spliced into the power of my 7-way trailer plug and switched by a magnetic switch so that they come on when the tailgate is opened. Couple options, at least.
FWIW I REALLY wanted factory nav on my '16 Silverado, but I never used it on my '08 Avalanche simply because GM didn't update maps frequently enough to make it practical. Since AA (or ACP, if I have to admit it) offer a better nav experience BY FAR (more options, mapping guidance, and MUCH more frequent updates) I decided I could do without. Just my $.02
I wanted to find a seller who could flash the HMI with my VIN, and most can't (or won't). I ended up paying $225 plus shipping for the deal. More than twice what some have paid since the beginning of this thread, but a LOT less than the $800 to $1200 price I was looking at with a complete radio upgrade. I was fine with that price given his rep. Tracking shows I should have the HMI by Thursday, so I can let you know by Friday how it goes. With any luck this will be working smoothly and I'll be testing out full android phone access in the 1500 by this weekend.
Just found this thread today and read through the whole thing. Some great info here, and most importantly, enough explanation and research to save me a lot of money. I was planning to buy a whole new radio and HMI (MVI was the most likely seller) which was going to take time to save up for. As it turns out, I was able to verify that my 2016 Silverado was one that suffered from insufficient stock syndrome. That's a LOT more manageable, so I just ordered a 2.5 HMI from dokus so will hopefully have AA by next weekend. I'll let you know if I run into any problems. Thanks to @Darmichar for starting the conversation! I'm guessing it has helped a lot of people out (me included). And thanks to everyone who contributed, especially @th3magpi3.
For what it's worth, I gave up on trying to use the 1N4004 diodes that are so often used. The leads were just not stiff enough for me to force into place. Instead, I used some 6a diodes that I had lying around from an earlier project. The diode is quite a bit bigger, but leads are thicker and much stiffer making them SO much easier to push in. I did [email protected] 's idea of starting the path with a jeweler's screwdriver, which also helped. Obviously the 6a diodes are overkill, but they do prevent current backflow, so they work fine. If anyone with more electrical knowledge than I do feels these are not safe somehow, please chime in. Sent from my Pixel 2 XL using Tapatalk
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Thanks, Phil, once again for your help. The reality is that there's not much you can do to a white truck to make it more than it is - a truck - but the mirrors make it a bit safer for me and the fam while I'm towing. Appreciate what you do for the community.
So for me, the long weekend is a break from the hectic day to day... and the time I needed to finally get the tow mirrors installed! Thanks to @Aaron1121for the mirrors themselves. They were just what I was looking for. And of course to @pgamboa for sending out the DIY kit for the harness modification. Everything worked exactly as expected! Of course, I probably spent more than double the time a normal person would take just for triple and quadruple checking the connections. Plus I modified the wiring slightly to add the front park/signal upgrade. Weird as it sounds, I actually enjoyed the project, and @pgamboa's instructions made it easy. If I can get it cleaned up, I'll post a pic later this wknd. I hope everyone has an awesome holiday weekend!
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