ive been looking for an answer all over the net but i cant find one so maybe you guys can help. I bought an 08 ford ranger like 2 weeks ago and naturally being 19 i want to install a audio system, But my concern is does this screw with my warrenty? or whats the deal with this. Thanks

Generally the only way that a warranty claim/repair could or would be denied would be if the aftermarket device/component couldbe proven to be the cause of a related failure...