Well all you who thought that Polarbear05 was trying to pull a fast one on us were WRONG.
Adding a OEM NAV to a STS that did not come with a NAV is 100% possible and it is completely plug and play.
The non NAV STS's have only two wiring harnesses. The NAV STS has four. The first two on both vehicles are the exact same. They include all of the power/ground and all the speaker wires. The other two connectors that are not present on the non NAV STS are for voice recognition and A/V inputs/outputs.
I am getting the other two plugs (the ones that the non NAV STS does not have) and I am going to wire something up to be able to get A/V inputs/outputs.
On top of that my IPac AUX input works on the NAV too.
The employees at my local Cadillac dealer were in amazement when I went to get the NAV unlocked today. I had 10-15 of them all standing in a circle around me asking me questions.
So the bottom line is that you CAN add a Cadillac NAV to a non NAV STS. It is plug and play. All the door chimes and everything else works perfect. The only thing you will not have that a STS that comes with NAV has is the VR and the A/V inputs/outputs, and if you can get a hold of some connectors (some NAV's on Ebay come with them) you can wire that up too.
I dont know how everyone elses locks when in drive but mine locks DVD when put in drive. Haven't tried the NAV yet as I am waiting on the antenna.
BUT, on the stock radio you cannot try to change the vehicle settings (remote start, memory seats, etc) when the car is going over like 5mph.
On the NAV I have now NOTHING is disabled or grayed out when the vehicle is in motion. I can change the settings and everything. Is this how everyone else NAV works?
Anyways HERE IS THE PROOF!!! I havent posted a Youtube video on here yet so this may not come out right.
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