Idle solutions apu

Greetings fellow truckers i recently bought a 2006 Coronado with a 14 Liter series 60 engine. But to my surprise there was apu already on the truck that said idle solutions on the outside and it was located on the passenger side where the tool box would be. I have never seen or heard of one of these a.p.u's does anyone have any feedback good or bad about this system?

 

I have tried but this posting stuff is new to me.

 

It doesn't seem so it has all components of a traditional apu the box slides out

 

Yes the batteries for the truck are located on the catwalk not under the driver compartment like other Coronados