There is a way, but its not cheap. Check out http://coastaletech.com/

If you find a cheaper solution, let us know.

 

Does anyone else have headrest tvs that they ran of factory head unit.

 

Hello, Everyone.. Need a little bit of help. When I bought my 2007 tahoe, the dealer had the navigation put in my truck (non bose). I had all the volume problems and etc. They took it out, after reading the forum of course I learned that i could re-install it using the jp custom parts. But now that I reinstalled the unit I don't hear the voice guide as loud as I was hearing them when the dealer installed the unit. The dealer installed a non dvd unit, I installed the dvd playing unit. Am I hooking something up wrong ?

Thanks

 

This doesnt sound like a big deal at all. Just go into the voice prompt settings, or nav settings and turn Her up!

 

Thanks biglg, but I did that already. The voice guide sounds low like the onstar button. When the dealer hooked it up, the onstar was low but the voice guide was loud.

 

im tryin to unlock my navagation 25797978 without going to the dealers, does anyone have an idea how to do it

 

hey im tryin to unlock my navagation unit #25797978, the dealer said they wont do it with out a reciept. Do u have an idea what to do?

 

Somehow you will have to get the program from GM. Then you will need to buy a Tech 2 machine. You can get the tech 2 device on ebay for 1-2,000k last time I looked. As for the software you will have to find that source.

 

Take them your receipt, or print out the invoice from paypal, ebay,etc. My dealer didnt ask this when I took mine to them. Maybe it is a difference in cities, or just dealers. Have you tried another dealer.

 

is it true that the dealer needs a reciept in order to unlock it