Rep Power: 0

I have a 05 Honda Civic Coupe. It has the factory radio and the in-dash CD changer. I just installed a Soundgate docking station so that I could keep the CD changer and still directly wire my Sirius Starbase to the aux. input. It works great, accept that now when I listen to the CD changer or Sirius radio I hear a high pitched whine in the background. It's coming from the speakers and it's really annoying. When the engine is off, there's no noise. When the rev's increase, so does the noise. I tried installing a ground loop isolator, but it didn't help. I'm desperate at this point!!!

Any suggestions?

Thanks.
Colin

 
Rep Power: 0

you gots engine noise....

 
Rep Power: 0

Thanks. Now, how do I get rid of it?

 
Rep Power: 0

i dunno, i'll bump this up, hopefully somebody will help

 
Rep Power: 312

 
Rep Power: 317

have any power wires running near/across speaker wires? That's a common way to get ground noise from an amp, might be something to look into.

 
Rep Power: 0

is the cd changer and sirus tuner grounded at seperate locations?

 
Rep Power: 0

alternator whine u definatly need to check ur grounds and make sure that they r seperate...

 
Rep Power: 0

I grounded them together on the same part of the chassis. Should the grounds be in separate locations?

 
Rep Power: 0

yeah id say it most likly a ground issue. check your grounds on your amp and the grounds for the other connections. I dont think it matters if you ground them together or not because I did. Until I read your post better I thought cus you had it transmitting wirelessly. BUt im 90% its a ground

 
Rep Power: 0

check and make sure your RCA's are plugged in and have good connection. Make sure the RCA's are not damaged. When you did your ground..... are sure you sanded away paint. Sometimes you make think its metal when its really paint. You would be surprised. Signal cables should be away from power wire.
your grounds shouldnt be in seperate locations. try and put all your grounds in one place. if you have grounding points all over your vehicle for electronic stuff, thats a common way to get engine noise. Do you have neons or anything? unplug those and see if you still get the problem

 
Rep Power: 0

I have two ground points that I'm using for my accessories. What I'll do is consolidate all of them into on point and make sure that it's good and clean. Hopefully that'll fix the issue. I'll be sure to let you guys know if it does the trick. Thanks for all your help so far.

 
Rep Power: 0

I found the problem. THe Soundgate unit was getting interference from the electrical wires in the dash. Once I moved the unit to a place under the center console, the buzzing went away. Thanks for all your help.