When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
If you can still hear the sound after you get out of the car and close the door, its not the stereo. Never in the history of CD players has there been a head unit that ridiculous.
Until the Ford Shaker unit.
They have a mind of their own...
Yup I noticed the louder noise was linked to the A/C fan(s) being on, but it could also be from the stepper motors behind the gauges? Either way, I've had it since I bought the car and have yet to see any adverse effects, so I'll just roll with it.
My 2006 Pony Package has had the same noise since new and it definitely come from the cluster area and not the radio. Besides I had a Shaker 500 and replaced it with a NAV and the noise is still there and is exactly the same.