RE: Radio/speaker issues
Sounds like you have a lose wire where the speaker is that is touching metal in the door.
When you say the volume is going up and down. Is it when you are driving and the volume goes up when you drive faster and when slowing it goes down? There is a feature on radios, maybe when you were messing with the radio you turned this feature on. Check your manual for this. It is a speed control thing. I forget what term they would use for this feature.
2006 Mustang GT Tungston - Hurst Comp/pro shifter
Infinity KAPPA682.7CF, BasslinkII sub and 4SC Module, Brenspeed tune. GMS CAI, Roush suspension, Redline Synthetic, Edelbrock Headers and many more things.......
2006 Ford F250 XLT Super Cab Diesel
2004 Triumph Daytona 955i - Yellow
2007 Victory Kingpin