check out my install of an Alpine head unit
http://www.lexusownersclub.com/us/forums/i...T&f=7&t=535&hl=
You can purcahse Stereo facia plates at autotoys.com
my suggestion is to have a full rewire and full speaker change as in the 2 rears, 2 front doors and tweeters. Do not bother with the dash speakers as you can by directional speakers for the doors that will take the job of the dash speakers.
I have added a large amp in my car and i am glad i did. I have a 5 channel alpine MRV-F450 so I have i channel per speaker and 1 channel for the sub.
anway.. take a look at the pics i have taken and i am sure you will see the good quality fascia plate i got from auto toys.