Turn signals:
http://www.ebay.com/itm/2x-24-Red-LED-Motorcycle-Turn-Signal-Indicators-Tail-Brake-Running-Light-Black/351328647888?_trksid=p2047675.c100011.m1850&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D31356%26meid%3De6de639b74464652a6f3a5a48d212862%26pid%3D100011%26rk%3D1%26rkt%3D10%26sd%3D351338499999
Trailer converter:
http://www.pepboys.com/product/details/303712/00098
I believe this was the flasher. The main thing is that it's LED. I had to swap around a couple of wires on the XS wiring harness to match the configuration on the plugs. Ground, light, power. There were a couple of options to choose from on these flashers....you might find one that's plug and play for your particular bike.
http://www.autozone.com/electrical-and-lighting/turn-signal-flasher/novita-turn-signal-flasher/6417_0_0/