I know I know, before you guys start flaming me, I used the searched button, and all the answers are not really clear plus almost everyone would agree to just go aftermarket, but just hear me out...

I have a chance to get my hands on 04-05 LS430 Navi with brain, what other things do I need to make it fit? I have a 02 LS430 without navi? TIA

 

This is for a GS, but it should give you a general idea of whats involved:

http://bananags.grantham-internation...GS_DIY/OEMGPS/


The toughest part is fabricating a new harness to make it work.