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1999-2005 BMW E46, BMW 3 Series Sedan Subwoofer System by BSW Installation Manual

With the harness removed, take a close look and note that there are two plugs inside of the main housing: The wire we’ll be looking for is in the GREY plug. It’s a small gauge White wire. The remote turn on wire is in the grey connector, Pin #10. Note: There are often times two white wires in the amplifier harness. It is imperative that the correct wire be identified in this step. Making the connections between your factory wire and the remote turn-on wire: It is important to remember here that we are essentially “T’ing” into the factory wires. It is important that the factory signal flow be allowed to continue back into the factory amplifier. A Quality set of wire crimpers is required for the next two sections. For a pictorial of the process outlined below, see photos on the following pages. 1. After stripping back approximately ¼’ of the insulation from the wires, exposing the copper wiring itself, twist one side of the factory wire that you cut in half together with either the included blue remote turn on wire or one of the LOC leads, of course depending on your connection. 2. Insert these two wires into one side of the butt connector, and crimp tightly. 3. Insert the remaining half of the white wire into the unused side of the butt connector and again crimp down tightly. 5 of 14 Any reproduction, distribution, modification, or dissemination of these instructions without written permission from Bavarian Soundwerks is expressly forbidden and a violation of international copyright law. Any violation will result in prosecution to the full extent available under the law! © Bavarian Soundwerks, LLC. 2195 Defoor Hills Rd., Suite D, Atlanta, GA 30318 P: 404.963.8857 | www.bavsound.com Getting the Audio Signal to your New Amplifier Again, it is important to remember here that we are essentially “T’ing” into the factory wires. It is important that the factory signal flow be allowed to continue back into the factory amplifier. This part of the installation is the most time consuming. Use the supplied blue butt connectors to make the connections. Make the connections at least 6” away from the factory amplifier plugs. After making the below connections, you can route the RCA Cables to the approximate amplifier location. 1. Carefully observe the factory amplifier harness. You will see a large bundle of wires going into the harness. The harness contains several wires, but don’t be overwhelmed. We will be using only four of them, and they are easy to locate. The wires will be twisted together, and each twisted pair represents a speaker or input. 2. You’ll need to isolate the following four (4) wires. They will be twisted together in pairs, as they enter the factory amplifier. -Blue w/Black Stripe (+) twisted with Brown w/Orange Stripe(-) -Yellow w/Black Stripe (+) twisted with Brown w/Orange Stripe (-) 3. Now, orient yourself with the Line Output Converter that you received with your order. There are four individual wires coming out of the unit. If there are Brown wires on your LOC, disregard them. They will not be used.

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