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You can not bypass or disable the factory alarm. It is part of the computer programming.
You can not bypass the factory alarm. It is built into the computers on the car.
The factory system can not be bypassed. It must be repaired if malfunctioning.
The factory alarm is part of the engine and body computers and can not be bypassed. If malfunctioning, the fault must be repaired.
The factory alarm system can not be bypassed. It must be repaired if malfunctioning.
With premium sound system you have to bypass the factory amplifier and pretty much splice into the factory wires after the amplifier. A good place for questions is the www.clublexus.com forums or the www.lexusownersclub.com forums. Search the forums and your question has already been addressed. Myself i have a 1999 gs400.
I'm not sure how to bypass the amplifier, but it is located behind the glove box. There are two harnesses that connect it to the radio. The bottom harness is removed by squeezing the ears and pulling off. The upper harness' release is on the rear facing side and is more difficult to operate. I used a small box-end wrench to take off the mounting bracket, then you can pull the amplifier out and turn it to see the clip.
The amplifier for the sound system is in the trunk on the right hand side of the car attached the the vertical panel on the trunk side of the rear seat. On most sound system options, this amplifier has a pre-amp required for the factory radio. If you are installing an aftermarket radio, you will need a bypass plug to eliminate the on board amplifier yet utilize the existing wiring and speakers.
Are you trying to add amplifiers? If so the best way is to use LOC (line out converters) and your RCAs will run from them to your amp.
No.
bypass the factory amp
They make bypass plugs you can get at best buy or anywhere that sells car audio.