You didn't answer this question. Do you only have one for ground and one for positive, or do you (like many of us) have other direct connections to the battery for added accessories?
I actually thought from another rider on your model there are 2 additional wires besides a battery tender or something of that sort being fed from the Batt. A few months ago a rider had question about which wire was on the positive and negative but I cant find the post. Obviously this is in addition to a tender or GPS direct wiring. So your saying you have only a single positive lead to the batt and a single Negative lead to the batt in addition to the battery tender???? When you unhook the ECM do you hear the fuel pump spool up??
2011 White Vision - Nuvi 550, Lowers, Lloydz 2nd filter, Vic perf filter, CB/Icom, 96 Brake LED's, Clear Signal lens/Switchbacks, VIC Hwy Pegs, Stebel Horn, 7Jurock 15" Shield, PCV, Lloyd ATS and Variable intake, Ness honkers
2004 V92 TC - S1 flash, level 1 slip-on, Ness big sucker K&N, ISO Grips, 4x1.5 Highway Hawg Risers, extra chrome (never too much), JM 2k CB 4' antena, Mustang seat, HD Front TS & Lowers, OD Pulley
Retired Navy SCPO