Aussie Accessories Anyone?

Same problem myself. New Prius after 10 faultless years in a Mk 1. The old car was white, the new one grey and my wife, feels the Adelaide traffic is not seeing her as well. I am putting in daytime running lights, but wonder where is the best place to intercept a 12 volt line for powering them in the right hand drive? Do you have any thoughts on this?
Next week is our first big trip with the car, to Canberra and Melbourne. My experience with the old car was that contrary to the usual claims that economy fell away with high speed running, it remained good. Of course other factors are in play. Is the road wet? Surface tension costs you. The wind direction, especially on the exposed plains between Tailem Bend and Horsham. The temperature. My best ever mileage was on a hot (43 degree) day. Luckily the use of the airconditioner does not involve belts, so there is no loss of power. The new Prius is downmarket compared to the mark ! which was Lexus quality throughout, but the main difference I notice with the new car is how much less friction there is. When I roll down the freeway from the hills to the city (slowing for the 90 kph limit in the tunnel), the old car would maybe reach 120 kph by the end, but the new one can hit 160. I need to use the brakes much more to keep to limits. Is this because there is less electromagnetic drag charging the battery on the overrun?
Most accessories have to be bought on the internet. I used Pulstar sparkplugs in the old car for instance, and had to buy them from Amazon as Pulstar don't ship abroad themselves (a warranty issue, I think). However, there are lots of sites out there.