I was trying to connect additional speaker inside the vehicle. But this product does not support that speaker. It works fine with small product like, to charge iPhone. It works fine, but didn't fulfill my demands.
Compatible with: Small electronic Appliance: Cell phone chargers, MP3 chargers, PDA chargers, GPS chargers, Mini Speakers, Bluetooth chargers, Digital Photo frames, Camera chargers, map lights, etc. NOTE: Not for large electronics like Laptop computers, , DVD players, Printers, etc.