I have a 94 LS400 and get no sound at all from any of the audio components. The audio system seems to work normally according to the LCD display, just no sound. I took car into Lexus and they diagnosed a short in the amplifier. Rather than paying them another 500 for a new amp, I bought one on Ebay. This amp unit is located in the trunk near the antenna mounted. I did a remove and replance and no change. I think the Lexus service department mentioned that the amp was located under a front seat. I have downloaded the audio wiring diagram but still cannot determine if a component is actually under the seat. It is the standard Pioneer system. Any thoughts would be appreciated.
Thanks
the pioneer anp is located in the trunk not under the antenna but behind the first aid kit the panel muist be removed its not the hard just 2 screws behind the first aid pack and a couple of the black clips the pioneer it small and on top of the cd changer so is the nakamichi i have a 93ls and have upgraded the entire audio system your best bet is to go aftermarket the stock amp i known to go bad both nakamichi and pioneer and for those people wondering the size of the door speakers it is 4inches i personally bought 5.25 inch speakers and used a dremel tool to cut the speaker enclosure and fit bigger speakers
