Chevrolet Forum - Chevy Enthusiasts Forums - Nav unit in a Yukon Denali?

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Quote:

Originally Posted by shawnvw (Post 89187)

more than likely what has happened, is that the dealer programed the radio wrong. there are 2 types of amps used in these things. They are what we call "smart" and "dumb" amps. A smart amp communicates with the radio via data lines. Meaning when the radio wants the amp to turn on, it talks to it over the data lines. Dumb amps can't talk to radios, they only know to turn on when it sees 12+on a certain wire......

If by "smart", you're referring to the GM LAN, the last amps to utilize that was on the last platform. None of the 9XX vehicles use amps that are on the GM LAN. Unfortunately, a victim of GM cost reduction.

Don't read too deeply.....I only said it communicates over data lines.....didn't say anything about high speed LAN.

Thanks Shawnvw for all you help with this problems of mine!!

OK my Vin# is 1GKFK66827J244360 let me know what you find so I can hopefully explain it to the Techs.

Thanks again!!!

I only guessed on the radio part# and whether you have a long or short wheelbase. we're not so concerned about that though...
The 2 categories that must match are the audio and equalizer. Print this info off and see if the dealer can verify that the radio has the correct software using the tech2

You have UQA with Y91, so the selections are as follows:

GM Vehicle Calibration Information (selected calibration)

VIN:1GKFK66827J244360
Controller:RAD Radio
Audio System: RPO U3U/UVB) Navigation radio
Hardware:15940102

Calibration History for: Rear View Camera

Part Number CVN Description

15260991 0000408C For 2007s: For half-ton utilities, long wheelbase with RPO UVC
16001551 N/A Rear View Camera

Calibration History for: Audio
Part Number CVN Description
25815921 000005B2 New calibration to correct DTC B1288 setting at assembly plant
25813098 00006EF0 New calibration to correct no video from rear VSM
15917513 00006288 New calibrations to address volume and fade/balance issues. (With RPO Y91)
15260986 0000E291 For vehicles with UQA speakers AND RPO STZ/Y91
16001549 N/A Audio

Calibration History for: Equalizer
Part Number CVN Description
15260988 0000A777 For UQA speakers ; 2008 Trucks with RPO Y91 (For H2 with RPO UQS); 2009 Trucks with RPO STZ or Y91
16001550 N/A Equalizer

Calibration History for: Tuner
Part Number CVN Description
15260978 0000DB0E DVD Region 1 (NTSC); North America/Domestic Tuner Spec.; (RPO VFF)

Thanks I will take this to the dealer and see what they say.

I had a question after reading your post. You had mentioned to take this print out and see if the radio has the correct software. If I gave you the radio's serial number would that help in determining what software is in it? I have the serial number if needed.

Thanks again!!!

No...which software is in it depends on what the last tech programmed it at. And TIS2WEB does not keep track of which software was selected for the last programming. You have to physically connect a tech2 to your vehicle and read it

I'm doing some research on adding factory Nav to a Yukon Denali so I'm bringing an old thread back from the dead. On a Denali, I understand you need an addition wiring harness part # 19202083 to get voice prompts (not voice commands) if you don't have the RSE. Where does this plug into?

Thanks.