I just installed Sirius Radio in my 2006 GS300 that I bought from Lexus-Parts.com. The installation went smooth. I started the car and noticed a high pitch sound coming from my speakers. I never heard it before so it's got to be from the Sirius installation. Some one told me before if you hear a high pitch sound that means you got a bad ground. All wiring I did was plug in the cables that came with the package.

Any ideas?

 

Not to sure on your question but as I see you are new so let me say WELCOME to you

 

Thanks for the welcome,

My question is, How do I get rid of that high pich sound coming from my speakers? If I press on the gas the sound goes higher.

 

The whine is alternator noise, either your installation is running too close to a power wire or more likely there is a bad ground. I'd suggest you take out whatever you put in and see if the problem persists... maybe someone in the audio/visual forum can give you more specific things to look for, I haven't gotten behind the dash on my GS yet.

 

moving this to the audio section...