I've got a 2001 Blazer LT. I'm looking for an install kit that will allow me to put a half size component like EQ below the stereo headunit, but all I'm finding are single DIN size for just the stereo. Any suggestions?

 

have you checked crutchfield?

 

Metra has the kit you need!
http://www.metraonline.com/fit.aspx

Part #99-4501

 

^^^ Exactly... Metra is the only company that carries those type for that truck. Hell they may be the only one's making kits with that ability period. There's just not much call for the half size EQ's anymore with so much of that sorta thing built into the HU's.