First time here, what I have read is great, lot of good info out their. Looking for things I can do to my 09 Street Glide to help it out a little. Things like lighting, I read something about changing brake light blub to make it brighter and also something about making rear turn signals work as brake lights? Would also like to upgrade speakers but not sure what to use, to many choices out their. Any info I could get would be great.