NAV and 6 disk changer in a Silverado

RidesGuy · August 4, 2004

The new amps you buy have to be programmed. After the wiring changes are made, go to the dealer to get it programmed for your truck( Sierra Denali if a 1500, etc truck, Escalade EXT if an Avalanche). It will work perfectly after that, they come unprogrammed new. Also, do not forget about the Class II serial data wire connection to the amp.

linda · August 4, 2004

A word of caution about programming....: This will solve the problem about 80% of the time, not in all cases however. If it was in a Tahoe, or Suburban....or a vehicle that has the option of having this NAV unit from the factory....then your odds go up considerably. The problem is that there is not a production vehicle from GMC, or CHEVY (through 2004) that has a UM8 option stock in a Pick up body style. I am pretty sure that even the sierra denali's dont have a UM8 option....only UC6 ( i may be wrong). The best way to be sure this MOD will work for you is to find an AMP that has been in a vehicle with the UM8 option and was removed while it was working. You can find them on E-bay, or at your local stereo shop where they have been removed for aftermarket equipment. You will get better $ deals from the local stereo shop. I have heard that programming works most of the time but it will cost you an hour of labor and most techs wont do it. Just want you to know all your options. Here is a document you can take into the dealer with you if your going to get it programmed. this will save you some time. You can substitute the platform for whatever you want as long as it a platform that supports a UM8 option. This example uses the Cadillac Escalade EXT.................................................

Service Information Page 12

TECH II Procedure

Audio Amplifier Setup

For the Bose Amplifier (UM8 w/Y91). Complete the following procedure.

1. Turn the ignition ON, engine OFF

2. At the Main Menu screen, select Diagnostics.

3. At the Vehicle Identification screen, select the following options:

A. Model Year

B. LD Trk, MPV, Incomplete

4. At the System Selection Menu screen, select Body.

5. At the Vehicle Identification screen, select the following options:

A. C or K(Platform type) <- Cadillac Escalade EXT

B. Select the appropriate HVAC system:

 CJ2 Dual Zone HVAC, Auto

 CJ3 Dual Zone HVAC, Manual

6. Select Uplevel Radio.

7. At the Body screen, select Amplifier.

8. Select Special Functions.

9. At the Special Functions screen, select Recalibration.

10. Select the appropriate body style/vehicle type.

11. Press the Setup Module key.

12. Verify the scan tool displays “Procedure in Progress.”

13. When the calibration ends press EXIT on the scan tool.

14. Cycle the ignition. Setup is complete.

mwgasman · August 7, 2004

Hi,

I just wanted to post and say thank-you to linda for all the help. My NAV is up and running and everything works perfectly.

linda · August 7, 2004

all in a days work....

2500hdcrew · August 12, 2004

I have a question, I have the '04 2500HDSLT Crew Cab. I already have the upgraded sound system with amp and 6 disc changer along with XM and Onstar. I also have the rear entertainment system with DVD. What I was looking for was the ability to add a NAV system to it. I was hoping to have it fit in the space BELOW the Climate control center. I only have two storage spaces along with the Lighter and aux. outlet. (don't care if I lose these). I was hoping to not have to replace the whole existing unit to achieve this. Is this possible or is it a pipe dream?? Any help would be appreciated.

linda · August 13, 2004

there are plenty of aftermarket systems that have custom bezels to do all kinds of different things. This was just a thread i started for guys (or girls) who wanted the factory navigation system in thier vehicle, and some info on how to get it up and running. Yes, there are all kinds of custom bezels to replace you pockets in the console. I dont have any links, but a few Google searches will turn up what you looking for im sure. Good luck.

2003blackz71 · August 20, 2004

does anyone have the part number for the bose amp needed for the nav upgrade and i also need the harness that connects the 6 disk changer to the nav unit. i need help guys. someone posted that a mod is needed at the amp wires that is not hard..please let me know...thanks

linda · August 20, 2004

here is the AMP.....

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...TRK%3AMESE%3AIT

And if you read this whole post, it explains exactly how to get your 6 disk changer operating with the NAV or any other head unit. Its in the middle of page 3 or 4 i think.

2003blackz71 · August 20, 2004

i wish i could talk to in person. that is exactly what i want to do ...i installed the nav unit but i guess i need a another amp. everything works except there is no sound coming out you get a faint noise when you change channels but thats it. please help and thanks so much for your time. i am standing by the computer

linda · August 20, 2004

that AMP i linked you to on E-Bay is the one you need......that is my auction, so i know it works for the NAV setup. Shoot me an E-mail later this evening and i will get you some documents that will make the small MODs to the AMP harness and changer harness easy to understand.

2003blackz71 · August 20, 2004

awsome...i just sent you a e-mail asking how fast i can get the amp from you. i will buy it now and i will pay extra if you can get it to me by this sat.

2003blackz71 · August 20, 2004

sorry to bug you again but i also need to know how did you do the bezil on the dash for the 6 disk changer...thanks a million for the light at the end of the tunnel

linda · August 20, 2004

well, its 1:30 here and im at work....so i dont think there is a way in hell to get it to you by tomorrow. I think the best we could shoot for would be Monday at best.

craig · August 21, 2004

The new amps you buy have to be programmed. After the wiring changes are made, go to the dealer to get it programmed for your truck( Sierra Denali if a 1500, etc truck, Escalade EXT if an Avalanche). It will work perfectly after that, they come unprogrammed new. Also, do not forget about the Class II serial data wire connection to the amp.

I have a 2003 GMC Envoy unfortunatly i do not have the bose system. I've heard the nav system is still possible. I want it bad. Does anyone know what can be done? ANy info would be great.

linda · August 21, 2004

I hear they have a NON-Luxury style NAV system now....however i have no experience with them. Not sure if that means you dont need the luxury AMP or if it means you dont need the BOSE system or both. Sorry