I just purchased the 2 mounts (kit from year one) to mount my 70 4 speed console in my 70 cuda and I see on the mounts where the console gets screwed to them but how do the mounts get attached to the floor of the car? (no holes in the mounts for attaching,Hmmmm Welded?) I was told this was a factory console car so there should be a sign of something somewhere from the past. I hate to have to remove carpet to get this attached but maybe I do? Who knows maybe never had a console from the factory..We all know how the internet sales can go. Thanks .