i have a thousand oaks 4 channel heater and wanted to extend all the heater wires that go into the heater channel they are all a little short i bought some male and female rca plugs and single shield wire as this is used of the heater bands while making the extentions i soldered the centre wire red to the centre pin on plug the external wire around the red centre i soldered to the negative checked the connections with the multi meter everything was fine pluged the cables together and the thousand oakes started to smell and a little smoke turned everything of plugged the original heater wires in without the extentions i made no problems so its in my extention wires ive made not knowing what ive done wrong thought id better post here before i do any more wiring and damage HELP
mozzie