Maybe. It's possible, but we don't recommend it. Here's why:
a. Fill in the groove of our post (thereby making it a flat-sided post) so you can mount a bracket to your WamBam post, OR ...
b. Make sure your bracket can fit inside our groove, OR ...
c. Make sure you can affix your panel into our groove somehow at your discretion.
In short, it's a lot easier if you just buy everything from us. You'll save time installing our system and have the peace of mind knowing your panels will work well with your easily installed no-dig posts. Just like why you wouldn't want to buy Ford parts for your Chevy car. Could you make it work? Maybe, but is it worth it?