posted that previously my car was at a body shop because of a squeak,so they put this hardening liquid in the pillar,it got less noise,but still there,the guy at the body shop said the next thing to do was cut the roor and redo the welds,that would mean taking out theglass and repainting the roof.I am really worried because the paint already dosnt match ,front bumper and rear bumper to the body,the body shop also said because the car has a stiff suspension there is no guarentee all will work.He than told me a new z off the dock was brought in for the same problem but worse.please what should i do ?