Multiple tvs ...picture on back jump???

[peanut123 10+ year member]

im currently running four tvs in a 2003 chevy avalanche... my in dash head unit has a perfect picture but the ones in the back the pictures jump up and down i already change the video booster and changed my car battery to a kenetic1800 and i got the flipdown working but the two head rest are still bad .....can somebody help me out please

performance teknique 6.5 in dash

15 inch flip down off brand

2 7 inch headrest eaglevision

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[gtbike900 10+ year member]

that usally happens with cheap tvs

 

[Louisiana_CRX 5,000+ posts]

you need a video amp

 

[peanut123 10+ year member]

you need a video amp

whats the diffrence between a video booster and a video amp?