Looking for ideas when connecting the wire to the speaker? Solder or clips?

 

Did you run new speaker wires? If not, the standard push-on terminals are fine. I normally place a small dab of solder on the wire...near the crimp @ base of blade.

 

Can't beat soldered connection, but I'd probably use a push on, and then solder it if it eventually went crackly.

 

Are you referring to screw down terminals like this?

 

I'm installing a set of hertz. I'm not good at soldering. Was looking for a better way to attache the wire to the speaker

 

Good quality spade connectors and a quality pair of crimping pliers is all you need. The spade connector size on the Hertz Mille are both 0.250".
The stock spade connectors are 0.250" and 0.187".

I made up some pigtails to convert to a pair of Moto 602's to retain the stock connections. The same can be done with the Hertz, just difference size spade connectors.