video/audio amplifier

Ok guys heres my predicament, I'm running 2 separate video sources (xbox 360 and my indash HU, Kenwood DNX7100) to 4 monitors. I know they sell video signal amplifiers for keeping the video signal quality, but do they sell splitters for the audio signal, or would typical y splitters work fine splitting the signal that many ways the monitors Im using have a pass-thru, so that solves the problem for one source, but the second source would need to be split (thats because the monitors have IR output for headphones.) any thoughts?

i    would just  put all inputs into the receiver the thing with y splitters is if you have a preamp output of 4 volt a y splitter makes it 2 and amplied higher distortion. why kind of radio do you have1993 sdv

Alpine 4x6 6x9 5 1/4 swr-10d4

alpine v60

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78nova

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Xtx-500.5

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