My silver LS was the boned then rear ended, I bought a new 430 but the techstream settings are different (when the car is off the doors remain locked, the center screen will always return to the nav after 5-10 seconds things of that nature.) I believe this is called c best settings?

What module is this stored in I still have my old car for parts and the dealer is going to charge me $200 minium to change the settings, I would prefer to just swap the modules and save some money. Any help is appreciated.

 

If you are computer literate, just buy a Techstream pack from eBay and use that to set it exactly how you like it. (eg. https://www.ebay.com/itm/313989873277 )
The settings will be stored in whichever Control box that setting applies to, so could be in any one of the 20+ boxes in the LS.
Some of the Control boxes can just be swapped out, but others need to be programmed to work with the system.

Either that or else find someone local to you that has Techstream and can help you out.
I've done it for a few friends with Toyotas & Lexus's, but I'm a bit far from you. :-)