i own 06 tl and i so badly want to install navigational system (stock). need to know where to buy and if it can be done. it seems very easy but i don't know.

 

Welcome to the forums. It can be done. I don't know about the easy part.

Please check out the The 3G Garage as well as the 3G TL Audio & Electronics FAQ for details.

Since this topic has been discussed many times, I am going to lock this thread. Feel free to post any new questions in the threads that come up during your research. Good luck!