I'm about to buy an amp and box from my manager at work for like $250. The amp puts out 600 watts. Would it be safe to use an amp install wiring kit that is rated for way more than 600 watts?

I plan on going insane later on (in terms of audio).

1999 Contour SE Sony Xplod 50x4 cd player Sony Xplod 1600 watt Class D amp 2 10" Flame-Q Audiobahns 35% tint done by Madavi's Motor Sports