Engine Noise :(

jrniehaus · 11-02-2009, 04:14 PM

Ok, so I actually moved the ground from the amp to a different bolt in the trunk and sanded it real good. Still have a engine buzz noise. Wondering if it is now the deck that needs to be grounded to the body somewhere also. I believe you grounded yours to a bolt near the gear selector? And my Hd 900-5 also seems to have a bit of a hissing noise when I set the input gains to the 24.6(fronts) and 44.7(sub) voltage levels. Maybe I should turn the amp gains down a bit to make the hiss less?

SlikNik · 11-02-2009, 05:38 PM

I have the same amp and just finished my install last week. No engine noise luckily.
I ran rca's down the middle, power wire down the drivers side. New speaker wire from amp(under that black foam piece) to crossovers under the seats, to door components. When your wires start to get closer together as they get closer to the amp make sure they don't run parallel next to each other. If they have to cross each other I have always heard to cross them at 90 degrees. I used that bolt to the left of the remote sensor thingy that was talked about in another thread to ground my amp. Used a wire brush in a drill to clean it down to metal.
The head unit is grounded to the wire harness on mine.

jrniehaus · 11-02-2009, 11:38 PM

I have a kenwood ddx714 using the factory wiring harness adaptor. The power for amp is running down passenger side. Now the amp is grounded well to the frame since I sanded that spot. The remote on, rcas, and front speaker lines are all going down the driver side. I haven't tried regrounding the deck, but wondering if it may be that, or if I should run the rcas and remote down the center and leave the fronts speaker wires on the driver side door area and assume the deck is ok, since it never buzzed before I added the components, and amp, etc.

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11-02-2009, 04:14 PM	#1 (permalink)
jrniehaus Base Member Join Date: Oct 2009 Location: Phx,AZ Posts: 45 Drives: 370z 6spd sport mdl Rep Power: 16	Ok, so I actually moved the ground from the amp to a different bolt in the trunk and sanded it real good. Still have a engine buzz noise. Wondering if it is now the deck that needs to be grounded to the body somewhere also. I believe you grounded yours to a bolt near the gear selector? And my Hd 900-5 also seems to have a bit of a hissing noise when I set the input gains to the 24.6(fronts) and 44.7(sub) voltage levels. Maybe I should turn the amp gains down a bit to make the hiss less?

11-02-2009, 05:38 PM	#2 (permalink)
SlikNik Enthusiast Member Join Date: May 2009 Location: Florida Posts: 294 Drives: 2015 Corvette Z51 Rep Power: 18	I have the same amp and just finished my install last week. No engine noise luckily. I ran rca's down the middle, power wire down the drivers side. New speaker wire from amp(under that black foam piece) to crossovers under the seats, to door components. When your wires start to get closer together as they get closer to the amp make sure they don't run parallel next to each other. If they have to cross each other I have always heard to cross them at 90 degrees. I used that bolt to the left of the remote sensor thingy that was talked about in another thread to ground my amp. Used a wire brush in a drill to clean it down to metal. The head unit is grounded to the wire harness on mine.

11-02-2009, 11:38 PM	#3 (permalink)
jrniehaus Base Member Join Date: Oct 2009 Location: Phx,AZ Posts: 45 Drives: 370z 6spd sport mdl Rep Power: 16	I have a kenwood ddx714 using the factory wiring harness adaptor. The power for amp is running down passenger side. Now the amp is grounded well to the frame since I sanded that spot. The remote on, rcas, and front speaker lines are all going down the driver side. I haven't tried regrounding the deck, but wondering if it may be that, or if I should run the rcas and remote down the center and leave the fronts speaker wires on the driver side door area and assume the deck is ok, since it never buzzed before I added the components, and amp, etc.