Intense buzzing when ignition turned to "on"

[gmpisawresome]

I just bought a Kenwood 9903s and have it wired up and working. However, there is hissing in the accessory ignition position and a lot of very noticeable buzzing when turned to the on position. I have grounded the radio to both the stock harness and the chassis. Interesting thing is I hear a relay switch when going from on to acc, and the intense hissing immediately stops once you that relay switches. I have the jbl premium sound system in this Toyota Celica, so I have 4 rcas coming out if the harness and into my radio. What should I do?

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[youdoofus]

I just bought a Kenwood 9903s and have it wired up and working. However, there is hissing in the accessory ignition position and a lot of very noticeable buzzing when turned to the on position. I have grounded the radio to both the stock harness and the chassis. Interesting thing is I hear a relay switch when going from on to acc, and the intense hissing immediately stops once you that relay switches. I have the jbl premium sound system in this Toyota Celica, so I have 4 rcas coming out if the harness and into my radio. What should I do?

did the old stock deck have rca's going out of it too? might be providing the stock amp too much voltage

 

[gmpisawresome]

Sorry for such a late response. I am almost positive that it was that because after bypassing the amp, it was much quieter. Thank you for your help, now I can listen to clean music!

 

[youdoofus]

Sorry for such a late response. I am almost positive that it was that because after bypassing the amp, it was much quieter. Thank you for your help, now I can listen to clean music!

fa sho bro. come on back any time you have any car audio stuff