Bridging rear outputs on 4 channel amp to use in 3 channel mode?

[BryceCC]

I have a 500W skar 4 channel amplifier and I have bridged the rear outputs to my sub and am trying to connect my front door speakers to the front channels. I have my LOC hooked up to the front channel outputs on my factory amplifier to get the RCAs to my Skar amp. The problem is that when I have everything hooked up I only get 2 channels working at a time and can never get all 3. Can anyone help? I've been stuck on this for weeks.

Amp:

RP-75.4AB | 500 Watt Class A/B 4-Channel Car Amplifier

The Skar Audio RP-75.4AB is a high performance, 4-channel, class A/B car amplifier. Engineered to be reliable and powerful, this 500 watt multi-channel amplifier will bring your aftermarket speakers alive.

www.skaraudio.com

Sub: https://www.skaraudio.com/products/ix-12-inch-car-subwoofer?variant=17677557441

Door Speakers: https://www.kicker.com/47KSC670

Loc: https://www.amazon.com/dp/B07VKFSLKN/?tag=caraudiocom-20

 

[KicktheSDbasshead]

I'm not sure why it's happening but that amp isn't going to give you good output set up that way you would need something a bigger

 

[1aespinoza]

Can anyone help? I've been stuck on this for weeks.

That amp does not have the RCA summing feature. You will have to use RCA splitters at the amp. If you already have that, then check the gains.