My std King KX-125/KT-96's fit near-flush. It's tight, but it works. Just don't forget the cross member at the bottom. As others have said, be careful with the (clearance regarding) antenna leads and other conductors at the back. See attached photo. Sorry so yellow - it's the sodium vapor lights in the hangar.ten4teg said:How are builders mounting radios with the narrow space behind the instrument panel. There is only about 10 inches and most radios are 12 to 13 inches in depth. Looking for ideas. Thanks, Tom