I'm putting these in the rear doors. Fitted one so far (!Removed! weather) think the originals are 5 1/4 inch but I've just modified the original mount to suit them. The fronts are 5 1/4 inch after market jobbies they are ok for now so I've left them alone. Got an Xplod sub in the boot and 2 amps. Gonna change that for a double enclosure with alpine subs not decided which yet. Have a switch to install in the cabin to turn the battery feed to the amps off as the distribution block has 2 led lights which stay on constantly thus drain the battery wen I'm away at work all week 😡😡😡.