Mounting solutions for FXI A(4&6) series

[VirUzxZ]

So heres my problem, i've recently bought my 2nd pair of surrounds to bump up to 7.1. But now i have both the A4 and the A6 and i'm not to sure where i should put each set. Although this is a concern for me mounting them poses to be a Larger concern for me. I've searched online for a mounting bracket and can't seem to find any that doesn't require me to Drill into them... Any help is appreciated.

[quadzilla]

I'd put the 6 on the side and the 4 at the back.

Both have the ability to mount without drilling the speakers. Worst case, call polk and ask them what bracket they recommend.