CD Changer in 05 non-lux Nav system

[Jeffz-71]

Linda Help!

 

I work at a dealership and have purchase a 05 Tahoe with a factory TNR system. I bought a 6 disc indash unit off ebay. Used your wiring diagram and wired it up using the small red wire for data bus. It work for a couple of minutes. It recognized the changer and played fine. It quite working and the Nav system is have some issues. I dug in the wiring diagrams looking the 5072 circut (tan bus wire for the CDX). Because I don't have the lux package I can't find it in the console or the side of the IP. I pluged in the tech II tool and it doesn't show the changer hooked up. I also read the 2 codes on the Nav unit that show lost connection on the data bus side. I use a splice on the data wire in case I need to return it stock look for warranty issues. Do you think this may the cause? I have read in the service manual the data bus is very sensitive to wire length and shielding.

 

Oh yea even with the cdx unplugged I still have issue with nav system. Any ideas?

 

Thanks

Jeff

[Jeffz-71]

Hey!

 

Great news I went home last night after looking at all of the schematics that I could on the data buss on my Tahoe. I figure it is just one big network connection using splice packs like Linda has talk about on the board before so I went ahead and soldered the cdx data wire to the class II data wire on the HU. It works beautiful and the Nav is operating perfectly. Apparently the splice that I was using on the data buss wire was not making a good enough connection and was causing an open in the network.

 

I must say thanks again to everyone who has contributed to this type of installed.

 

 

Jeff