i have an auto xmsn and for some reason the shifter moves around while its in gear. It has only popped into N once while driving but it usually just moves around and clicks alot any time i hit a bump. i can take it in to get looked at but i dont want them to take me for everything i got. so if anybody knows anything that it could be would help when i take it in, or if its simple than i will fix it myself. thx in advance for any info.