I recently came across a product(s) and company you may want to consider. The company is Inertia LED and the products are CAN-bus LED bulbs. I put the RY10W in my 1200 Sport and WHAMMO!, what a difference! The testimonial pics on their website DO NOT EXAGGERATE.
No resistors or diodes or anything else required - truly plug and play. Ordered a couple for my Cali14 as well.
Plus, they are a small company and the customer service is excellent.
In addition to the Inertia LED website, the LEDs are available on Amazon as well.