2004 Pontiac GP

[traystew]

Took it back today, rewired and even put in old stereo and still have a high pitched noise from dash over speedo and tach. Did not mention before, radio with Sirius, antennae for sirus and for GPS. It has a microphone for blue tooth run to the driver side visor. If anyone has any ideas please let me know, this is getting very annoying.

 

[traystew]

They called everywhere and everyone and could not find any solution to this problem. Any help will be greatly appreciated.

 

[99grandprixGT 5,000+ posts]

so they installed the factory radio back in and still the noise? no noise before install, and nothing else changed just the HU?

 

[traystew]

I fixed it. Tried moving the XM antennae it was positioned right over my dash on the roof and no more noise. IT was interfering with my tach and that created the noise!