Sure can...
http://www.ledtronics.com/markets/auto_index.htm
Try the 15mm SC bayonet base, kinda like these...
http://www.ledtronics.com/ds/B608/
There are other sizes, it all depends on if it'll fit. The only downside is that you only get forward light, but it'll at least give you a starting point to find the right bulb.