Finally, a factory amp wiring diagram
12-08-10, 07:33 AM
#4
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Even volume control passes through the amp.
You can only take high signals from the amp and pass them through an aftermarket amp with high to low converters.
Audison BITONE is the best for the job.
12-08-10, 09:25 AM
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03-20-17, 02:26 AM
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03-20-17, 02:34 PM
#10
Yes, providing you get a wire harness from Beat Sonic or the Scosche dash kit. I replace my stock radio via the Beat Sonic harness (2007 IS250 without ML) and the sound quality along with the volume improved significantly. In my current setup, I bypass the factory amp.
02-03-19, 11:50 AM
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I’m trying to swap the amp in my 2008 Lexus IS 250 to a aftermarket without having to cut the original wiring. Is there a wiring harness made for this car so that I can just bypass the factory amp and use an aftermarket? I can’t find one anywhere.
06-02-19, 09:11 PM
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Anyone wondering for the tweeters, they are pink and purple wires wired from a crossover from the midrange speakers. Then from pink/purple they go to a clip changing into gray and black wires.
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