How To Install a GMC Sierra Radio

How To Install a GMC Sierra Radio

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Whether you are upgrading your factory stereo or upgrading to a navigation system, it can be handy to know how to install a GMC Sierra radio. Today we’ll be showing you how to install a GMC Sierra radio in a 2008 GMC Sierra 1500. And if you want navigation in your truck, but it didn’t come with it from the factory, a factory navigation head unit can be a great choice.

Considering this generation of GMC Sierra is very similar to the GMC Acadia or Saturn Outlook, this makes for a great upgrade. Not to mention how relatively easy and straightforward that kind of install would be. Combined with our how to install a GMC Sierra radio, you can wire in any additional device, such as a GPS, DVD player or more.

Today I’ll be showing you how to remove as well as how to install a GMC Sierra radio or aftermarket head unit. All wires and wire colors should match before you attempt to wire anything into your vehicle. As always, use our DIY Guides on how to install a radio at your own risk and make sure to work safely with your wiring.

GMC Sierra radio 1

Begin by making sure your GMC Sierra is in the PARK position and that your parking brake has been engaged. Now reach up and grab the top bonnet of your dashboard above your radio.

This outer layer can simply pull off with the right amount of tug, make sure to evenly place your hands around the top of the unit. Pull evenly and downward to disengage the GMC Sierra radio trim. Once you have this bezel removed, you can access the bolts as well as any electrical connectors you may need to disconnect.

GMC Sierra radio 2

Once you have this bezel taken off, you’ve got free access to the GMC factory radio and the bolts you need to remove.

GMC Sierra radio 4

Now you can undo the bolts holding the radio and climate controls to the dash. Unplug your traction control button and remove the bezel around the radio.

GMC Sierra radio

Remove the bolts that run alongside either side of your factory radio assembly, and then you can gently remove your GMC Sierra radio. You now know How To Install a GMC Sierra radio, and if you need the 2008 GMC Sierra radio wiring diagram, we’ve included it below.

2008 GMC Sierra radio Wiring Guide


 

Car Radio Battery Constant 12v+ Wire: Red/White
Car Radio Accessory Switched 12v+ Wire: Dark Green
Car Radio Ground Wire: Black
Car Stereo Dimmer Wire: Yellow
Car Stereo Amplifier Location: Under the Rear Center Console
Car Audio Front Tweeter Size: 3/4″ Tweeters
Car Audio Front Tweeter Depth: 1″
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Front Speakers Size: 6 1/2″ Speakers
Car Audio Front Speakers Depth: 5″
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue
Car Audio Rear Speakers Size: 6 1/2″ Speakers
Car Audio Rear Speakers Depth: 5″

Have any questions about our How To Install a GMC Sierra Radio DIY Guide? Leave them below and let us know!

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