Honestly, you'd be better off finding a way to mount it into the stock location. Your sound would be better because it would be mounted to a surface that's more solid than a flimsy door panel. Even fiberglass pods use an MDF ring to mount to. However, if it's strictly for the visual appeal, have at it... and I doubt your sound would be horrible if you mounted them like this. I ghetto'd a set of coaxials into my monte one time this way... still sounded alright.