OK, I'm after a little bit of help here... for Christmas, Santa (well, my brother) was kind and delivered a towbar-mounted 4-bike rack, which sits nicely and was easy to install, although it means that I had to take off the rubber surround at the base of the towbar.

Now for the tricky bit - the legal stuff. I need to get a bike rack number plate, which the good folks at Vicroads have promised to deliver to me in 14 days, and for that privilege they only required me to hand over $27 ($7 cheaper than NSW..). However, if I use said bike rack at night, I need to illuminate the plate.

So here's the choices:

1) Use the existing adaptor that came with the car, and make up a set of lights for the bike rack that plug into the flat 7-pin connector.

2) Make up a new harness, using the same type of plug that's on the car (the 13-pin round).

3) Make up a new harness, using the 13-pin connector, that will act as a double adaptor and let the bike rack and trailer lights operate in harmony, without exceeding the load limit of the car power supply. If I do this, then I'll get the benefit of being able to run an extra power wire to a trailer to keep a car fridge there, rather than taking up space in the boot.

Finally, does anyone have the details of the round plug? Judging by its size and type, I'm tipping they'll be about $80 each, if available at all.. almost a military-style, but not quite..

Thanks all,

AP