Being a GLS, How switched on are some of these wankers to actually come out and say quote; That harness is for DRL, not driving lights as the wires wont carry the load, but hang on we installed it anyway,
Go to another Dealer, get it sorted.
Really I cant see how they can stuff it up as its all Plug and Play, even the relay attached inside the LH side of the engine bay has a dedicated plug.
I know it sounds bloody stupid but the Pos+ & Neg- leads coming off the relay to the battery aren,t arsed about
or the plug from your driving lights have correct Polarity.
Dibby would be a good bloke to ask