I get my cable in a car shop, not a city car shop but one in a village. I told them what I needed, cable that goes from a 12volt whatever amp battery to power a whatever watt bulb Hey presto I have good, non curly cable. You really do need to get a cheap soldering iron from Maplins and some solder, also new connections and DIY the job. I've four Lightforce lamps and since I've done them myself they never put a foot wrong.
i may do someting befor i get cought again, i,ll call into a place tomorrow and see if they can help. cant afford for that to happen again...