brain and high current harness gets warm

Have installed a Viper 5701 Responder LE and after running in remote start mode for about 20-24 minutes as a test I picked up the brain unit to move and noticed that the side with the high-current harness was a little warm.  Not hot, but warm to the touch (warmer than the ambient air around it).  Also, the harness felt to be the same warm temp, mostly at the ignition input red wire moving a few inches back to the included fuse, then it went completely cool; fuse itself cool and fine.  Does not happen with not in remote start mode and it does fine when started with the switch.  The red wire is soldered (nice shiny hot solder job too) into the constant 12v at the switch harness and everything felt fine up there as well.  I did not make the DEI wire longer, actually I did shorten it a couple of inches as there was extra length that I didn't need with the selected mounting location up behind the instrument panel.  All functions tested fine and no problems were found with my test run.  Is this warmth normal or should I try shortening the wire a little more, perhaps a bad on-board relay?

I've never actually touched the brain on an installed unit, so I wasn't sure if I should be concerned...

the wires shouldnt get hot so something's not right. a bad solder joint could be making a current bottleneck or depending on exactly how and where you made the connections for the 12v alarm inputs you could be forcing too much current through a single wire. how did you connect the 3 red 12v input wires from the alarm to the ignition harness? is there more than one 12v constant wire at the ignition harness? if so then how many of those did you use to feed the alarm?

its not a serious problem but over time it could cause your alarm to self destruct.

I'm thinking it might have been that I didn't get the harness fully snapped in during the test run as I was temporarily connecting all the harnesses causing the connections to raise the resistance at the harness?  I had to disconnect and re-connect everything when I put the brain in the final mounting location and made sure everything was firmly connected, I just ran it again using remote start and then felt all the wires/brain and everything feels fine this time with the outside temp at 98° F.