Need Help: DVD/Video Game System problems!

[DJ KoZoTo]

Well I am just stumpted at whats wrong, so I need your guys help!

Well I have a Pioneeer AVH-P5700DVD (no brain box) and I was trying to hook up my wii (a little project im doing). So I hooked up my inverter to the battery and grounded it to a ground by the deck, then I hooked up the wii.
I turn it on,
SUCCESS,
or so I thought. I get feedback, both video and audio...

can someone help me get rid of this problem

[Demonik]

hmm...disconnect everything and reconnect...i know it sucks to have to do, but sometimes it works, try a different ground also and use decent cables for EVERYTHING!!! that is the one thing to not get the el cheapo deluxes for...doesnt have to be "monster" quality/insanely priced stuff, but nothing from the dollar store or walmart either...go with radioshack, thats where I get alot of my cable from

[Craz1000]

explain the feedback exactly, theres different types of feedback for different problems, but MOST of them are because of a bad ground path

[DJ KoZoTo]

well here is the whole troubleshooting story. there is basicly 1 line traveling down the scrren at a time, and there is a small buzzing sound. after the problem started i first took an extension cord from inside my place and tried it, no distortion. then i turned the inverter on and used the house plug power source...and no distortion...then i tried it again plugged in the inverter, and distortion....boo!

[Demonik]

the buzz sound is definietly a ground issue...the line down the screen...eh that sounds like a totally different problem..not sure how to fix that one

[duholt]

for whatever reason almost every single inverter i used when i was installing for a living caused feedback like that... most of the inverters came with filters you could wire up to the power/ground wires to prevent it though.... if yours didn't come w/ it i'd look into getting one of those filters

[KrackstaR]

bad ground!

reground all the wires with thickier ground, even the head unit and inverter.