i want to run 2 amps a 4 channel and a 2 channel, heres the Q

I'll be running the rca cable to the deck from the 4 channel amp and the REM turn on wire also to the deck. The 4 channel amp has an rca cable output to piggyback another amp without running another cable from the deck to the second amp, so if i do that, do I have to run a second REM wire from the 2 channel, or will the REM on the 4 channel turn on both amps with the same switch ?

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94' Mazda Mx3 - 2.5L 5spd
Pioneer DEH-P7600mp
Lightning audio 5.25"s
Lightning audio 5x7s
Lightning audio B.150.2 amp
Lightning audio B3.12.4 woofer