So I had a video of my 2005 running because you can hear the noise plain as day but I can’t upload it! Tried and failed multiple times so I’ll have to explain it in female talk so prepare yourselves! I start the car and it’s fine till I back out of the garage then this winding up noise starts. Not a thump or a knock. It gets higher pitched as I reverse. When I climb up the driveway the noise is still going but if I idle the noise stops. Seems to fade as the car warms up. No codes so no clue what happened. I store it in the pole barn for winter because I love it when all the neighborhood cats sleep on it’s soft roof

and this happened a couple days after I got it out and had driven it really fast a couple times to blow the fur off. I’m certain it’s not mice chewing because of all the cats. It’s awesome because my Cayenne S won’t run either so I’m a grown ass women that’s grounded yay! Any ideas on what it could be?