do that or here's a post that I did about making your own

https://www.performancetrucks.net/fo...highlight=fans

There's no tuning for this one, but both fans will always be running on low. and then both on high when the a/c kicks in. I made my own mounting brackets out of some landscaping spikes. . . or what ever zip ties or metal that you have. Right side up or up side down it doesn't matter.