Can anyone with a 2003 LS430 with navigation post a good picture of the wiring harnesses that plug into the back of the player in the trunk, particularly the 6 pin harness. I need to know what colors go to what pin. While the theives stole my nav player, they also cut a plug off and im trying to rewire it. Help please.

 

Can you find the connector number? In the 2004 There is a Nav ECU 6-pin connector called N7. Specs are:

TX1+ (N7−1) − GND1 (N4−17) // L − W−B
TX1− (N7−4) − GND1 (N4−17) // LG − W−B

 

Here you go.

 

Do you know if these schematics apply to the 2002 Nav unit? I think this gives enough information to put in the bypass switch to allow typing while driving.

 

Hey toantran99, is it possible to post a similar pdf of the bluetooth circuit also? Want to run the audio outputs of the BT to the rest of the speakers if possible. Tired of straining to hear callers thru that one door speaker. I have an 05 ML. Thanks in advance.

 

toantran99, thank you for the diagram. Im having a real problem figuring out everything that was stolen. All that was left was the amp(ML). I bought the nav player and some kind of an ECU for it that mounts next to it. I see in the diagram that there is some sort of a telephone/speaker relay. Would I need that as well so that my stereo and navigation would work? Lexus just wants to replace everything for $5200. Even the amp and tuner which i all ready have.

 

2001-2003 should be the same

 

I don't think you need the telephone speaker relay since your vehicle does not have Bluetooth.

 

Let me see if I can find out tomorrow.

 

Hope this will help.