My kit is definitely missing the extended cable to the hand held unit. :~(
I'll have to get in touch with Summit where I bought it and see if they can help me out. Did you run the cable to the interior permanently with a hole and grommet thru the firewall? Thanks again for the photos, I'm about 99% sure I'm either going use the original battery tray, or make a custom mounting tray to go in the same location.

Some see the glass as half empty, some see the glass as half full. I just drink straight out of the bottle.