front panel sides. there's no space on the vertical extrusions to mount them . also make sure you put the strip that has the thin wire on the left . i rush to put them and didnt realize that the hole to pass the wires is to small for the thicker wires to pass thru. so i had to widen that hole .
also the adhesive of the led strips cant be re-positioned so measure well before putting them. they should go all the way from top to bottom.