Lexus 2003 LS Owner's Manual page 221

(c) Automatic sound levelizer
20L136a
When the audio sound becomes difficult to be heard due to
road noise, wind noise, etc. during driving, the system adjusts
to the optimum volume and tone quality according to the noise
level.
Push and hold the "TRAF" button until "ASL" appears on the
display.
(d) Your radio antenna
The wire antenna is mounted inside the rear window.
NOTICE
R When cleaning the inside of the rear window, be
careful not to scratch or damage the wire antenna.
R Putting a window tint (especially, conductive or
metallic type) on the rear window may affect the
reception of radio or mobile telephone.
installation of the window tint, consult with your
Lexus dealer.
(e) Your cassette player
When you insert a cassette, the exposed tape should be to the
right.
NOTICE
Do not oil any part of the cassette player, and do not
insert anything except a cassette tape into the slot.
AUDIO
For the
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