Installing an aftermarket Amp to power a Sub(s) in most BMW's is actually one of the easiest installations, if you know what your doing. Since you can pretty much find everything in the trunk, the install is less time consuming because all the wire runs are relatively short runs assuming you want all your gear in the trunk. The factory Amp is normally located in the trunk behind the trunk liner on the driver side. If you're keeping the factory radio you can normally tap into the factory subwoofers here for your hi level input to your aftermarket amp.
You can also normally find the factory 12v amp turn on wire here as well and use it to turn on your new aftermarket amp . In this BMW the amp turn on wire was "Black" sometime it will be a different color like "white" or "blue" so always double check and test with a meter. When testing for the factory amp turn on wire keep in mind most the time the amp turn on wire in BMW's will have a shut off delay. Meaning the wire will stay 12v for about 30-60 seconds after the key is removed and the door has been opened.
After you tap into the factory sub wires and grab your amp turn on wire from the factory amp. Run them to the new aftermarket amp location avoiding anything that could possibly damage the new wires. The main power wire can be attached to the battery which will normally be located in the trunk on the passenger side behind the plastic cover. Once you find a good grounding point attach your ground and run both wires to the new aftermarket amp as well.
Once all your your connections are made and the subs are connected, your ready to tune your new amp!
Once properly tuned and mounted, enjoy!
-Jeremy's Car Audio Tips
#bmw #amp #sub #caraudio #soundsystem #sandiego
-Jeremy's Car Audio Tips
#bmw #amp #sub #caraudio #soundsystem #sandiego
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