6.5 Speaker Swap Questions

Elan

Hey Guys. I am about to replace the two 6.5 speakers because as you all know they suck. I am keeping the stock head unit (for now) and that leads me to a few questions. I apologize if they have been asked before, but I have been searching to avail.

1. To just replace the 6.5s, can I just use the stock wiring from the old speakers without changing anything?

2. I believe stock is 2-way speakers. If I were to get 3-way, do I have to add additional wires or am I am better off with sticking to the 2-way?

3. Are there any power limitations that I should be worried about?

Thanks guys. Sorry for being such a newbie. I don't do much electrical work let alone audio.

Looking at the Sony XS-GT1638F or Sound Ordnance P-65

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