this may be a dumb question but, how do you make a hole in carpet. with the sound deadening and jute backed carpet, how due you drill seat bolt holes through it. i have tried to drill with a drill bit and that just rips it up. i have heated up a welding rod and stuck it through it with mixed results.( smoke/fire). i have used a exacto knife which isn't much better. this isn't my first rodeo but, i have never made a successful job of this.