You need non-lux. The Lux Bose systems in the TBs only went from 2002 to early 2004.I have been reading over these threads and need a clarification. I have a 2007 Traillazer LT without the Bose system does have XM. I would like to purchase the Nav system. There are several in the "marketplace". Do I need a Non Lux unit? What esle will I need to convert this over? Thanks
TNR is touchscreen INR is non-touchscreen. Since you don't have Bose, you'll have to find a radio that is for non-Bose trucks. Which won't be easy to do since most of them had Bose either in lux or non-lux. They are out there, but you'll just have th search. And dont' trust the descriptions on eBay, most of those sellers have no clue what they have. Search for the part number to find what you need.After reading this thread, I am still confused which Navigation unit would fit my trailblazer. I don't have bose, and it has the standard cd player in it. In addition what is the difference with INR and TNR
DURAtotheMAX said:***NOTE*** You MAY or MAY NOT have to do this step (wire the VSS wire).
For 2005, im 99% sure all of the GMT-800 vehicles already have the
VSS wire in place as standard. My '05 Duramax LT Crew Cab already had
it… If your truck is a 2005 there is no
reason it shouldnt have it. 2004.5 MAY or may not have it. 2003 and
early 2004 definetly wont have it; only the Escalades and Denali's had
it back then because the Nav was an option that was exclusive to
those two vehicles... You can check for it
by looking at the radio C2 connector (the smaller one). Check if there
is a DARK GREEN wire going into pin "E". If its there, the VSS wire is
already in place and you dont have to worry about wiring it.
Alternatively, you can temporarrily plug in the TNR and start driving
forward...if the "destination programming screen/section" gets grayed
out as you go above 10 mph or so, then the VSS wire is working
VSS WIRING INSTRUCTIONS IF YOU DON’T ALREADY HAVE THE WIRE:
You will have to remove the instrument cluster. Unbolt the 4
bolts that hold it in and pull it forward and unplug it. Find the wire
that goes into the A4 pin of the gauges connector. It will be a green
with white stripe wire. This is the VSS wire. Use a plastic wire
tap/Scotchloc connector and tap into this wire. Run the wire and make
sure it is long enough to reach the "radio C2" connector (the smaller
radio connector). Now take another of those "unused" pins that you cut
off of the amp harness. Splice it onto the end of the "new" VSS wire.
Then, pry off the pin retaining clip from the radio C2 connector. Then
push the pin into the "E" position. (see diagrams for which position
is E...its also in tiny tiny letters on the plastic connector) Snap
the retaining clip back on.