sound like a gears are grinding type of sound?
Mine did that alot when new when downshifting. I usually do not shift to first now
unless i am almost stopped. I will roll to a stop in 2nd and then drop to neutral if i have
to stop completely. I will then pop in to 1st and wait to see if traffic behind me stops. If it is a long light and safe to do so i will pop it up into neutral again until light changes.