Hey everyone, I'm new to the Acura scene...I've recently purchased my 05 TL, and I've notice a couple of sounds the first come as I'm driving starts off as a gear whine sound "like reverse" the faster you go the higher pitch it gets, it is not rpm based it's speed sensitive and getsome kind of quite and turnsignal to almost a hum/whistle at hey speeds, as soon as I lift off throttle the sound quits and vise versa. ..and for the next there is a light thumping/knocking sound when in park and neutral, and it gets louder when in reverse, but quits when pulled into drive...could these two sounds be related? Just wondering if anyone else has had these issues? Any help would be appreciated thanks in advance. ..