The whole vehicle is a ground so anywhere on metal.I plan to install Amp and Subwoofer for 21 Ford Expedition XLT 6speakers by myself. But please give me an idea about location to ground when connect Amp with power. Thank you.
My expedition is an aluminum frame. Thus I don’t know where I can do that. ThanksThe whole vehicle is a ground so anywhere on metal.
Either find a bolt close to the amp or you can make a new grounding spot with a self-tapping screw. (Make sure you have good ground, remove paint around screw if needed)
Making sure you have the correct gauge wire is also important.