I think lot of people on CL uses the VAIS w/ good results
http://www.vaistech.com/products/sl2i.php
however I think this is another alterative
http://www.crutchfield.com/p_581PA15...=detailed_info

I wonder if it will work on 2004-2006 LS430
(I don't know why it only list 2003 LS430)

 

This one works with newer Lexus.

http://www.crutchfield.com/p_581PA20...N&tp=120&avf=N

I have one (the PA 15) and like it (2004 RX330 w/ML, no NAV). It's biggest drawback is you can't browse (albums, artists, songs) on the factory stereo. You can select from 6 playlists (by changing "discs") or select directly from iPhone/iPod.

On a system w/o Nav I don't think the inability to browse is much of a limitation.

Aloha, Joe

 

Thanks that's much cheaper than the VAIS!

 

I thought I had heard that the usa spec has inferior sound quality than the vais- just putting it out there - you get what you pay for