Some aftermarket units may control the bluetooth, the OEM head unit does not.Ħ. If you didn't have bluetooth before you installed your OEM nav unit, you won't have it after. I'm sure most of you guys know this, but I figure I'd include it in the post. Even if the tech INSISTS he did it correctly, he didn't.ĥ. If the programming is done and you still have loud chimes and turn signals (or no chimes and no turn signals) the install was done wrong. Do you have a tech who has done this before?" if the answer is no, call the next place.Ĥ. To save yourself time and headache, call around and ask them the question "Hi, I want to upgrade my non-navigation (vehicle) to a OEM navigiation unit. This doesn't mean their tech knows how to do this install. They may have sold you a great car, and you may be a life long fan. Do not just take it to your favorite dealer. Because of this, I recomend this very important step. (NOT to unlock the unit, which they very likely won't do and for good reason) Then they need to go through and carefully reprogram the unit based on the options specific to your vehicle.ģ. You need to get a loaded VIN for your particular make (VERY IMPORTANT) and find a dealer that will use that vin to pull up the programming options. Your vehicle didn't come with NAV, so when the dealer uses your VIN to open up the programming options, it will not bring up the proper options. It takes a little outside of the box thinking. If you don't believe me on this, just search this forum or some of the other big GM vehicle forums if you need confirmation, I've been doing my best to dispell this idea. It can all be taken care of with programing. In the GMT900 / Lambda Platform vehicles, Bose / Non Bose Y91 doesn't matter one bit. Some sellers do it before they sell it to you, but most can't (it takes equipment the average person, or even a place like us, just doesn't have access to.) It shouldn't cost you more than $75.Ģ. I've posted this on a few forums I'm a member or vendor on, figured this was the best place to share it here.ġ. I was initially wrong on a few things about the upgrade, specifically the BOSE VS non BOSE issue. How to install a factory navigation system into your Chevy Silverado, Chevy Avalanche, Chevy Suburban, Chevy Tahoe, GMC Sierra, GMC Yukon, and GMC Yukon XL when it did not come with the navigation system from the factory!įigured I'd come correct myself on a few things in case people are looking for help. This will eliminate the error message and your nav system will remain the same when you shift into reverse. So there you have it. To do this go to"menu", click "display", choose "rear camera options" and uncheck the box to view rear camera while in reverse. You will also want to disable the rear camera option (since your vehicle did not come with navigation it also did not come with a rear camera) or else you will get an error message about your rear video system. This allows you to use the other visible disk drive on the system for CD's, MP3 disks, and even DVD movies (which can only be viewed while in park and only available on units with DVD movie capability). The screen folds down and the navigation disk is inserted. The map disk is inserted behind the screen of the navigation system. The nav will need a navigation map disk to function as a navigating system but you will be able to use the the radio and all of the other features of the navigation unit. If everything works properly you should be up and running at this point! When the unit first turns on you should be greeted with the logo from the make of your vehicle (in this case GMC). If the navigation unit is functioning properly then please move on to the next step. Keep in mind if you are inside of a garage or around any large building the antenna may not be able to communicate with the satellites. It will however tell you your current GPS coordinates. You will not be able to use the navigation until you have navigation disk. Test the unit to make sure everything is working properly. Once you are all plugged in (don't forget about the am/fm antenna!) go ahead and turn the key on. The plugs are slotted to ensure that the correct wiring goes into the right plug. Do not be alarmed, this is correct and you cannot plug the wires into the wrong place. You will find you only have two wiring harnesses available. You will see the navigation system has 4 inputs on the back for a wiring harness to go into. ![]() ![]() Plug the radio wires into the navigation unit. Plug the antenna into the navigation system and set it on the dash. Remove the old radio and the heat control unit (which must be removed before the radio). For a good practice we are going to test the navigation unit before going any further.
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