Lunarwolf

i have a decent setup alpine head unit 5 ch alpine amp mb quart 5.25 component speakers one infinity sub. anyways. Just never been completely happy with it. I wanted to install a 1/2 din eq. i cant find a install kit that houses a eq. All i find that Could work is the kit that has the little sleeve under the radio. what i already have . . Has anyone installed a in dash eq in their 99-04 stang?