If you’re looking to install car speakers with crossover, there are a few things you’ll need to do first. Start by removing the old speakers. You can do this by prying them off the mounting brackets or unscrewing the screws that hold them in place. Once they’re out, you can either discard them or use them to make room for your new speakers. Next, measure the distance between the front and rear of your car and find the corresponding speaker locations on each side. Use this information to mark off a rectangle on one of your old speaker panels with a marker. This will be your new speaker location. Now it’s time to install your new speakers. First, attach one end of the crossover cable to one of the new speaker terminals and connect it to the corresponding wire on your car’s electrical system. Then attach the other end of the crossover cable to one of the old speaker terminals and connect it to an appropriate wire on your car’s electrical system. Finally, screw in both ends of the old speaker panel into place using screws or bolts (depending on how it was attached). Your installation is now complete! Just plug in your newly installed speakers and enjoy some great music without having to worry about pesky crossover issues anymore! ..