'07 TL-S Nav retention with aftermarket Head Unit
 

Does anyone know what resister is needed to keep the top screen working when adding an aftermarket head unit? I read on a youtube video, a guy say to put a resister between the red power and blue Display Control unit- BUS+ wire, but the link he posted was broken, and he did not say what resister is needed to trick the screen into thinking the radio is still there.

Anyone?

found my answer in case anyone else needs.. place inbetween the red power and blue display control wire on the 26 pin harness, not the blue 20 pin harness
https://cimg1.ibsrv.net/gimg/acurazi...133503c192.jpg

Now I do have a question... My radio didn't have a 26 pin harness on the back, just the 20 pin radio harness, the smaller harness and a 40 pin harness....
The blue and red wire are not in the same as the diagrams I have seen. Anyone know which wires are the display Can+ and Can- wires in the 40 pin harness?

do you have the link to the video?

do you have pictures of the install? i am very much interested in doing this.

I want to do this too to my 08 TL-S

Thanks man. i actually ended up finding this from another thread. now to figure out what kind of Unit i want.

do you have the pin numbers for the 26 pin connector to wire the resistor in between? Thanks.

If the "display Can+ and Can-" are the "Display Panel Control Unit" pins on the 2008 TL then this 40 Pin Audio connector diagram should help.

Looks like the equivalent pins on the 2008 are Pin 27 and Pin 28.