92 bmw 525i factory amp bypass
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=96139
Printed Date: June 11, 2024 at 4:30 AM
Topic: 92 bmw 525i factory amp bypass
Posted By: desh187
Subject: 92 bmw 525i factory amp bypass
Date Posted: August 03, 2007 at 2:34 AM
Has anyone replaced the oem radio with an aftermarket cd player on a 92 bmw 525?
This vehicle has a factory amplifier in the trunk.
I need some feed back on how i can bypass the factory amplifier.
Thanks
Replies:
Posted By: audiomaninc
Date Posted: August 03, 2007 at 11:23 AM
Go back to the factory amplifier and unplug it. Probe the wires to find the ones that go to your speakers. You can do this by first eliminating the power wires with a multimeter or circuit safe test light, then take your tone generator, or trusty 9 volt battery, and begin popping speakers. The speaker wires in that car are most likely twisted in pairs, so that should be fairly simple. Just strip some wire off each pair and touch the leads to the battery and listen for which speakers make a small popping sound. If you're lucky, the front components will not have separate wires from the amp for the woofer and tweeter. If this isn't the case, you'll have to replace the front speakers. Now run speaker wires from your new CD player all the way back to the factory amp, and connect them at the amplifier. You can still get your +12V Constant, +12V Acc., and Ground from behind the factory deck. Good Luck!
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2003 Dodge Neon R/T
Alpine CDA9813, RF T2000.1bd, RF T162S, RFT142C, RF T600.4, RF T215D4
140.7 @ 28Hz
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