YGOSLO

That's why I haven't touched it yet. I don't wanna pull it out and put it back in because I'll end up breaking something.

I got a lot of help from this site when I did my install last month. I figured you guys could help out with this. I'm sure it's not specific to the AVIC X920BT, but that's what I have. Stationary it sounds great. When I start driving around I get a whirring that matches engine RPM. I know the first thing everybody is going to say is "check your ground". But I found this through another forum and wondered if anyone here has any experience with it or any other ideas that may work. Check it out and let me know what you think: Ground Loop Fix

Thanks for the replies guys... Hopefully I can find all that stuff. I appreciate the help.

I'm about to install my X920BT in my 2003 Ford Mustang Cobra this weekend. I've already done the bypass, hopefully that works. Do I need to run that to a ground with the parking brake cable instead of where the instruction say to(power supply side of parking brake switch). I just also looking for some insight as to where to go find the Speed Signal Input Cable, Reverse Gear Signal, Switched power, constant power and the other cable in my car. Any help is appreciated. Thanks.