Mids and Highs, Cuts Out When Sub Is Turned Up

Head line say it all. My kicker 700.5 powers mids and highs.(2 massive 6s 2 Memphis 5x8 2 3.5 Memphis in dash) it is wired and verified to 4ohm at amp. It cuts out when I turn up my cab 45(sub amp)The subs keep playing but I lose the kicker all together and it will cut in and out until I turn subs down. My gains are at 50 the boost is o on all components. Charging is stock but I have and odyssey deep cycle off a bobcat backing everything up.

2014 optima
Big 3 1/0 alt to chassis / battery to chassis / engine to chassis
Single run of 1/0 to the back where it connects to my odyssey agm78 before splitting off to the cab 45 and kicker 700.5 via 1/0 then grounded to chassis via 1/0. All inputs are low level patch cables gains are minimal and the head unit is flattened

When it cuts out is the amplifier light changing color, protection mode? Something is shorting to ground. Doesn't seem like power issue. I would disconnect all speaker leads going to 5 channel which is powering everything except the subs. While playing music at 75% volume reconnect 1 speaker at a time. If after reconnecting first speaker it does not cut out the amp is tested ok. Continue connecting remaining speakers.

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Rocky Verma

So a little update, problem persists, no prot light the amp is powering off and then back on. Ive replaced the relay for my remote wire and the wire itself, ive also installed js ho alt and 2 more odyssey extremes. The only relief i get is with a cap installed. I think the amp is wigging out and gonna give up the ghist soon. pre voltage is correct dmm verifies 150watts to highs 200 to mids via dmm. I also get crossover bleed through qt higher volumes and all that is done qt the hu.

Every other amp rans speakers fine. May donate this one back to rf and pick up an m4 from cab the 45 is a killer.