Where to mount my MSD Box!!?!?

I have a MSD 6A brand new with harness I got for almost free. I have a CIA but there really isn't much room under it as some iv seen. Any idea's on where to mount it. I can relocate the battery but thats a hassle as we all know but get better weight distro from it. Anyone cut a hole in the battery tray and put it there? Any idea's or pics of what other people have done. Im close to relocating the battery. Wanted to ask on here first ALWAYS get great feed back here.

Thanks
 
Mines mounted inside the cabin, under the dash on the left side of the stereo area. It's not in the way, but you do get to listen to it hum
 
Mines tucked away behind the intake tube on the 7-up. I don't have a pic of my 91, but it's under the drivers seat.
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