Different Wiring Harnesses?

[jhrudkaj]

My buddy has an Aveo and he wants to put in an aftermarket deck. He was told by a guy at Best Buy that there's two harnesses. One will allow the dinger to ding if the lights are left on and the other doesn't have that. I've looked all over the net but haven't been able to confirm that. So, I thought I'd ask the experts.

Does anyone know of two types of harnesses or is the BB guy feeding him a line of bull.

Thanks,
Joe

[jhrudkaj]

Forgot. It's an '05 Aveo.