What factory size speakers come in a 97 yukon

It can be issue with Faulty radio AMP or the problem is with loose radio speaker wires.
There is a test procedure,you can do.Click the link below to follow the test procedure.
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No sound from speakers on 04 gmc yukon

http://repairhelpcenter.blogspot.com/2012/10/no-sound-from-speakers-on-04-gmc-yukon.html
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these will help.
Thanks.

Hi there:
Spark plugs that you buy, should be pre-gapped for this application... 0.60 is the factory gap



Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

• HI, I can help.
• Your front doors each have a 6 1/2" speaker.
• Your front doors each have 5 1/4" speaker.

• If you have any comments please feel free to leave them here.
• ]Hope this helps and thank you for using FixYa.

Regards, Tony

Hello my name is Israel and I will try to help. Assuming that the radio is a factory installed radio, I would try to get an extra speaker and go to each speaker location to check if you have "power" going to each speaker. It could be that the speakers have gone out. If the radio is after market you could do the same, plus also check the connections behind the stereo to be sure that they are secure. Good luck.

Hi, my research indicates you can install a single din aftermarket head unit in the 2001 Yukon.
A couple of good websites to use are crutchfield and modifiedlife.
Crutchfields will identify exactly what adapters are needed, and modified life has the factory wire colors.
You will need an adapter to fill the space between the aftermarket stereo and the hole left by removing the factory head unit.
You will also need an antenna plug adapter.
I recommend you buy the wire harness pigtail to simplify the installation--this may or may not include the antenna plug adapter.
If you have onstar, you will need an additional adapter.
If you have steering wheel controls, you will need another adapter to keep those.
Keep the above things in mind when selecting a new aftermarket stereo, as you will need one that is compatible with steering wheel controls and onstar, if you have either of those and want them to continue to work with the new stereo.
Crutchfield has an link called "outfit my car" that takes you through a "Turbo tax" style questionaire and tells you what will work and what you will need. here is the link: http://www.crutchfield.com/App/Car/outfitmycar/MyCar.aspx

Assuming you have a base Yukon, here are your factory wire colors from modifiedlife.com:
2001 GMC Yukon Car Radio Wiring Schematic
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
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 Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
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

Please let me know if you have questions, and thanks for using FixYa.

Both ebay, auto electronics section, and www.crutchfield.com have
areas which will tell you what speaker will fit in what pre-existing holes in your car.

2002 GMC Yukon Car Stereo Wiring Guide
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
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 Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
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

rate pls

1995 GMC Yukon Truck Audio Wiring Chart
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
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 Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
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

go to cructhfeild.com and enter your vehicle info. they'll tell you. or you can just take them out and measure them.

Hi amberdawn_84

My 97 yukon did the same thing (I believe). The valve body in the transmisson wears out (design problem) and causes the transmission to shift really hard. My repair was about $500 (nondealer).
LOVE MY YUKON!