Good deal. Looks like 23 AWG is about 20 milliohms per foot, so 100' is about 2 ohms. That probably really did make a difference. Keyed up at 50W with the engine off would be the worst case and sounds like it worked fine.
'91 Pickup - Imelda
'08 Tacoma TRD
'09 Kawasaki KLR650
'12 Gunnar Rockhound 29
"To live is to suffer, to survive is to find some meaning in the suffering." -- Friedrich Nietzsche