its hard to modify the newer cars mate, and sometimes any mods you make gives the manufacturer or insurer an excuse to bail out of a claim.
In a case like yours the number plate bracket would be the best option , maybe with a smaller support bracket fed through the grille somewhere to reduce lights vibrating. Its probably Canbus control so you cant use the headlight switch , so best option is to pick it up at the dash high beam feed or at the headlight itself. If lights are negative switched use a relay to trigger the new driving lights.
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