Originally Posted by Tolson0123

Hey guys, I am new to this website and this install.

I know it is a fairly old thread but I was wondering, what type of line convertor did you use? Are there distinguishing factors between different line convertors? I have never installed a sub before and am having one shipped out early this week, I am attempting to buy all of the necessary parts before it arrives. It is a package with a sub/amp/wires.

Thanks!

Originally Posted by mgg4591

I just installed a 10 inch sub and 1000 watt class d mono kenwood amp in my 2011 accord coupe ex. But i am having a very odd and annoying issue that i hope you guys could help me with.

I used a line out converter because i kept the factory head unit, and just unplugged the connector to the factory sub. For some reason when i give the car gas, whether driving, or just giving it small revs in park, when the rpms drop back down to idle, i get a loud BWWWAHHHHH out of the sub. Like a long deep bass note even if the volume is on 0. Even more odd, the noise goes away if i open a door.

So if i leave a door open and rev the engine, the stereo sounds fine and there is no noise. But if i close the door it and rev it, or go drive, it makes the loud bass note that vibrates the whole car when the rpms drop.

I ran the power wire from the battery + to the amp through the hood latch cable hole in the firewall. I used a 12v ignition power source as the remote wire. I then have the back speakers wired into the amp through a line out converter. For a ground i used a screw on the rear deck that holds down the car seat anchors.

I tried 3 different line out converters, a different amp, and different remote wire source, and a different ground source, but nothing worked. I have no idea what is going on, and if you guys could help me i would greatly appreciate it.

I used this same setup in my old 99 Saturn and had no issues. Used the same line out converter with the factory head unit and had no issues.