Get the AMP XL so it will hide the sticking out battery and frame from underneath the retracted doorsteps!
Wiring is easy if you got the user manual and all the correct parts. In my case I got shipped the wrong brackets no user manual and missing parts. I believe they have not sold to many of these so it is still a work in progress. Once I got shipped the right parts from AMP everything was easy. Four wires connect underneath the dash and the module bolts on to the battery easyly. I will post some photos as soon as I get a chance...how easy was the wiring?