Low hz rumble though sub only while stereo is on

[krystofir2009]

Low hz rumble though sub only while stereo is on i have 2 0awg power and 2 0awg grounds plus aditional grounds connecting bed and cab of truck to frame. seems like a ground loop but i cant find it. i have a skar zvx15d.2 v.3 and a RP2000D

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[mahc 10+ year member]

Low hz rumble though sub only while stereo is on i have 2 0awg power and 2 0awg grounds plus aditional grounds connecting bed and cab of truck to frame. seems like a ground loop but i cant find it. i have a skar zvx15d.2 v.3 and a RP2000D

Big 3?

 

[ThxOne Premium Member]

Low hz rumble though sub only while stereo is on i have 2 0awg power and 2 0awg grounds plus aditional grounds connecting bed and cab of truck to frame. seems like a ground loop but i cant find it. i have a skar zvx15d.2 v.3 and a RP2000D

Where are your signal cables running? Are they near the power cables? If it is an aftermarket head unit... is it grounded well?

 

[krystofir2009]

Power remote and v meter wires down driver's side And high end 6ch shielded coaxial bundle down pass side. The ground For the stereo is factory ground

 

[krystofir2009]

Power remote and v meter wires down driver's side And high end 6ch shielded coaxial bundle down pass side. The ground For the stereo is factory ground

Hope it's not my signal wires in the photo (blue) because I'll Have to remove my 220lb box

 

[krystofir2009]

Hope it's not my signal wires in the photo (blue) because I'll Have to remove my 220lb box

 

[ThxOne Premium Member]

Hmmm, hard to say. If it is "humming" at idle, no music playing... I would start physically touching cables and wires with your bare hand. Many times a suspect cable will either silence or amplify the hum. Then you can trace that wire or cable and correct the connection usually. Just a suggestion. It may or may not yield a result.

 

[krystofir2009]

Hmmm, hard to say. If it is "humming" at idle, no music playing... I would start physically touching cables and wires with your bare hand. Many times a suspect cable will either silence or amplify the hum. Then you can trace that wire or cable and correct the connection usually. Just a suggestion. It may or may not yield a result.

It's not Humming it sounds exactly like my exhaust Its weird

 

[1aespinoza Premium Member]

It's not Humming it sounds exactly like my exhaust Its weird

Disconnect RCAs from the amp. If hum reamains, amp is at fault. If hum goes away, reconnect at amp then disconnect at the stereo. If hum persists, RCA cable is at fault. If hum stops, stereo is at fault.

 

[LsGuy]

Run a new power and ground for the head unit.

 

[Louisiana_CRX 5,000+ posts]

Sounds like a bad or weak ground ..did you ground to the body or frame ? Body and seat bolts are very bad ground spots in a truck on a high powered system... also its always best to measure your ground resistance in larger installs ...

 

[shredder2]

"Motorboating" is almost always a ground issue, follow the steps outlined above to isolate the problem area and you'll be golden.