My personal opinion spend more money on wiring theres no point having $500 amp $500 head unit expensive speakers and spending $5 on RCA cables

Im using 3x Streetwires Zero noise RCA cables there like $49 i think
Using 4 Guage Streetwires Wiring kit about 160 bucks

and yeah 16 guage speaker wire

spend like 10% of total system on wiring you dont want to be replacing dodgey RCA cables its a pain in the butt


anyway good luck bro