right now i have my ground wire attached to the bolt on the car jack holder. sanded it down with a dremel but i am still getting a whining noise whenever i acclerate. where have you guys with 4th gens put the ground?

 

i have it right above the rear suspenison. the hole is there just need a washer and top sand it down.. i used to have it connected to the strut.. only changed it b/c it would be a bit ch to sand down..

blake

 

I did it behind my rear seat backrest, on the metal plate. I cleant it off and i put it underneath a bolt.

 

Anyone have any input on if changing the ground in the trunk actually removes feedback?

I have some feedback too, I can only hear it if the radios volume is at 0-3