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Old 3rd November 2008, 12:12 PM   #1
Roker is offline Roker  United States
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Default Accidentally wired my amplifier wrong!

Okay I am going to come right out and say it, I am an idiot!!! I was in a hurry and too excited to use the correct precautions, which would have saved my amp.

I accidentally wired the 12v power to my Rockford Fosgate 5005 backwards, meaning I connected the battery + to the amps - and so on. I was just testing the amp before installing it my car and unfortunately I didn't have a fuse in place. Stupid, stupid, I know. It blew two mosfets and I replaced them already, and what a joy that was. I couldn't get them to solder back to the Mehsa board so I built braces to hold them down using the exsiting screws. Everything looks good so I a hooked it up the right way and I even used a 15 amp fuse. However, I still have a problem with the amp. All it does is blow the fuses when I turn the key and power goes to the REM wire. The fuse doesn't blow until the REM power turns on. It will also blow a 20 amp fuse.

What do I need to do now?
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Old 3rd November 2008, 12:29 PM   #2
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Default Re: Accidentally wired my amplifier wrong!

Originally posted by Roker
What do I need to do now?
Have this moved to the car audio forum.
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Old 3rd November 2008, 08:04 PM   #3
Eva is offline Eva  Spain
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It seems that the polarity reversal blew more components than just these two MOSFET. Check further.

The MEHSA stuff (intended to avoid you from repairing the amplifier) and the lack of a built-in fuse (intended to help you to blow it) make Rockford amplifiers anything but my favourite ones.
I use to feel like the small child in The Emperor's New Clothes tale
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