I have a newer am/fm radio setup on my airhead driving two 4" speakers. It also has a dedicated input for an add-on device (i.e. Ipod, mp3 player). It does not have a connection for helmet speakers, headphones, etc.
How do I wire in a stereo mini socket to drive a set of helmet speakers?
Has anyone done this successflully?
Are resistors required so that the helmet speakers are not overpowered?
Advice would be greatly appreciated.