Sure you can, just get two different colored bulbs. They sell them in many colors, just get a replacement LED that fits your need. I haven't changed all mine just yet, only the bigger lights, and they work great. Look at various ebay auctions for
http://cgi.ebay.com/ebaymotors/10-pc...spagenameZWDVW
check it out. unless I am completely confused, this should work.