I have a C5 2003 50th Anniversary Convertible, 6 speed. 40000 miles. Battery went dead (7 years old), I replaced it , new battery went dead after about a couple weeks. Found amp draw on fuse 25 in inside floor fuse holder, it is drawing 0.41 amps when fuse is reinserted in fuse panel. Fuse 25 is for BCM and the Instrument Control Cluster. Disconnected BCM and draw still there. 0.41 draw will stay there no matter what. Any ideas what the draw in the Instrument Control Cluster could be? I am not too keen on taking the dash apart to trace it. Will leave that as my last resort. HELP. Thanks for reading. No related fault codes has come up, but an open to the oil temperature switch came up once. Oil temp gauge is working now, code went away. 0.41 amp draw is hiding.