I have a 2010 Voyager that I decided to hard wire my GPS to the accessory wire in the front fairing. Took the left speaker and left accessory box out to get to it. The stock speakers could definitely use an upgrade. I have front and rear speakers so I will need 4. I've reviewed as many threads as I could find but still have some questions. Not looking to add a amp so is there something I should be looking for in particular in regard to specs?? Does it make a difference to use 2-way or 3-way speakers? Just looking to get clearer, crisper sound over stock. Any advice would be appreciated.