Help with speakers!

[E82135i]

Hey all, I know there was a thread about this but just can't find it So please, I would appreciate if you guys help me out.
I recently replaced oem axle back exhaust and got me a straight pipe. Car sounds amazing but there is a weird beeping noise coming from my speakers. Not sure if it is all the speakers but mostly noticeable from driver side front twit. I had golf tee mod before by disconnecting the wire and have re-connected the wires after putting straight pipe.
What can I do to fix this?
edit:
beeping goes away when giving gas....

[MuNkY6913]

Did you zip tie the little tube shut? I think I saw that was the problem for someone with similar problem. The little tube that you take off for the golf tee mod had come unplugged. Take another gander at it.

[E82135i]

Originally Posted by MuNkY6913

Did you zip tie the little tube shut? I think I saw that was the problem for someone with similar problem. The little tube that you take off for the golf tee mod had come unplugged. Take another gander at it.

I unplugged that thinging behind driver side tail lights so there was no zip toes used i just found out that noise goes away when i do golf tee mod again.... I still cant find a solution for this :/

[MuNkY6913]

There's a vacuum hose that attaches to the muffler. That hose needs to be plugged. I think that's part of the golf tee mod. I just folded it in half 3 times and zip tied it really tight. Try that see if it fixes it.