Now a Squeak at off throttle

lately and I think maybe it's since I removed the door sills and trim pieces due to amp install I can hear it, whenever I accellerate and then let off the gas, I'm getting a squeak from the front of the car. it only does it when I'm driving and it's not the spew from the wastegate. almost like butterfly on the t-body is doing it but it's the same whether it's WOT or just a little blip. I ruled out clutch related as you can gas it does it the instant you let off. However, it does not do it when the car is stopped, only in motion. any ideas?