I would leave a radio on, give him something really yummy (safe) to chew on, maybe put his morning meal IN the crate with him right before you leave, and then leave while he's eating..You can also try covering the crate, altho if he is going bonkers, he may pull whatever you put over it, INTO the crate...
You can also put him in the crate during the day and LEAVE , just go outside where he can't see you, for a few minutes, come back when he's quiet, let him out, start extending your times..
Danger Danger vom Kleinen Hain aka Masi
"Angel" Jakoda's Bewitchen Sami CD OA OAJ OAC NGC OJC RS-O GS-N JS-O TT HIC CGC
"Angel" Steinwald's Four x Four CGC HIC TT
Harmonyhill's Hy Jynx NA NAJ NAC NJC RS-N JS-N HIC
"Angel" Jakoda's Jagged Edge