Aftermarket DVD Player

I had a DVD player installed in my Yukon and it plays fine when parked, however when I am in drive I hear an annoying sound...kinda like a whistling noise. It does it when I accelerate. I assume it has something to do with where the ground wire is hooked up, but I am only guessing.
Please help, this noise is starting to get on my last nerve!!!!!!! :zav::zav:

Yep.. alternator whine is what we called it back in tha day.. Caused by you guessed it... the ground. Look for a better ground point...

Thanks...I will get right on it. Just for clarity what would be a good ground?

im using the floor bolts on the rear seats for my amps. make sure you sand and file off all the paint. a big 3 might do you some good too.