After market transmission cooler instal

I have a 2010 X5 Diesel, I plan on towing on a 2600lb travel trailer with it. I want to install an after market transmission cooler (plate type, they provide more cooling that tube and fin). I know that BMW has already installed a transmission cooler but can't go wrong with more cooling and fluid. I was wondering/hoping that some out there has installed one and could give me some ideas as to where you mounted the cooler and how the lines were routed. Looks like there is plenty of room in front of the turbo inter cooler. I don't want to "zap" tie it to the inter cooler or the A/C Condenser, I would like to make a bracket and attach in front of the other coolers. Pics would really help.



Thanks