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DIY: Do It Yourself
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Old 04-04-2017, 08:44 PM   #1
Aventador_nb
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Amp and sub install frustration

Guys I followed this thread exactly with no change:

http://www.bimmerfest.com/forums/sho...d.php?t=324767

I'm so frustrated. I didn't get any power with my planet audio 1000w amp hooked up to my subwoofer. I figured it may be because I haven't hooked up a remote wire. I even ran a remote wire to the aftermarket headunit. What can be wrong? I'm so lost and frustrated. Pictures to follow.

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Old 04-04-2017, 08:47 PM   #2
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Old 04-04-2017, 08:47 PM   #3
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Old 04-04-2017, 08:48 PM   #4
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Old 04-05-2017, 07:27 AM   #5
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Did you connect the amp's power wire directly to the battery? Did you put a fuse in that wire? Wheee did you ground the amp? The remote turn on wire carries a 12VDC signal from the head unit. It won't power the amp.
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Old 04-05-2017, 08:11 AM   #6
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Originally Posted by markusmarkus View Post
Did you connect the amp's power wire directly to the battery? Did you put a fuse in that wire? Wheee did you ground the amp? The remote turn on wire carries a 12VDC signal from the head unit. It won't power the amp.
The ground is the blue wire going to the screw by the battery. The amps power wire is going to the positive terminal, albeit on the secondary cable connected to it. The fuse is connected to the power wire.

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Old 04-05-2017, 08:12 AM   #7
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The white cable is the positive and blue is ground just for reference.

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Old 04-05-2017, 08:43 AM   #8
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Power and remote look good, but I don't know about the ground. That brace is on top of painted metal and doesn't look like it would provide a sufficient ground. Theres a better terminal behind the right rear side bolster.
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Old 04-05-2017, 09:12 AM   #9
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Power and remote look good, but I don't know about the ground. That brace is on top of painted metal and doesn't look like it would provide a sufficient ground. Theres a better terminal behind the right rear side bolster.
I'll transfer the ground and check it out. I did eff up a little bit too by the way. I plugged the negative end of the battery in first and then plugged the positive attached to the 4 gauge wire (without the fuse inserted) and it got so hot that it burned the metal screw connector off the battery terminal and made a hole in the battery. Do you think I cooked my amp? The power was connected but the fuse wasn't inserted and no rca going in. I believe that the 4 gauge was strong enough to handle the heat, but never can be sure. I hope you know what I mean?

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Old 04-06-2017, 03:06 PM   #10
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I'll keep you folks updated. I've not been near the car since I attempted install day one. I'll try again tomorrow and see what the issue is.

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Old 04-06-2017, 05:28 PM   #11
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The screw on the battery bolt is a horrible ground! You need frame or body bolt but in this case I would go directly to the battery or the point the battery grounds to the car itself.

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Old 04-06-2017, 05:40 PM   #12
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The screw on the battery bolt is a horrible ground! You need frame or body bolt but in this case I would go directly to the battery or the point the battery grounds to the car itself.

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Can the ground cause the amp to not power on?

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Old 04-08-2017, 02:00 AM   #13
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Btw guys I replaced the positive burnt wire going into the amp and wired the ground to the negative terminal. Amp fired right up. Wiring from the headunit was more difficult than it seemed, but everything worked out just fine. Subs sound great now

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