amp wire size

[Innovative 1]

Hey people. Wondering what gauge to power my amp. Only doing a 4 channel amp (no sub) to power my door and rear component speakers in back. Going with the focal 4 channel amp with focal 6.5's 2-ways in front with crossovers and harmon 5.25's 2-ways in back. Going with focal amp wiring kit. Which one would suit my set up better? 8 gauge or 4 gauge? How much juice can car take or put out without frying something like alternator?

[Bluevitz-rs]

8AWG pure copper or 6AWG CCA (Copper Clad Aluminum)

Just make sure your grounding point is sanded free of paint

[Innovative 1]

Which is better or more efficient I should say?

[Bluevitz-rs]

Copper is a better conductor but costs more. CCA is cheaper and lighter but both at those sizes I recommended will conduct approximately the same amount of current. You will not notice a difference with either selection.

[Innovative 1]

Can the charging system on our yaris' handle what im talking about with the 4 speakers running off the single 4 channel amp?

[Bluevitz-rs]

Yes more than adequate.