I have a 90 pick up and I mounted my radio in my cubby box, out of sight and very secure. The cables go out the bottom of the box and in the cab lining to the speakers mounted on the top, back edge of the roof lining. I mounted two 13cm pioneer 130W speakers in the cab and they are awesome! The problem with mounting speakers in a pick up cab is the depth of the speakers, and it can be a sod to mount the speakers. The electric cable goes out through the floor and into the battery box. The way I have put the speakers and radio, it is secure and stays out of any mud and water.