Homelink Question

[dannygakers]

Long time listener, first time caller. I'm on to my second LR4 ('13 LUX) and am having issues with the homelink system. I perused other issues with homelink on the site; however, my issue is that there doesn't seem to be any power getting to the unit itself (i.e. no lights appear when any of the buttons are pushed). So my question is, is there a fuse that is specific to the unit itself? I've done some research and have come up empty.

Thanks in advance and appreciate any assistance anyone may be able to provide.