Description
Negative ground.
A solid state vibrator, as opposed to the original mechanical style.
For original AM Radios.
With a negative ground car you can now charge your cell phone, add a modern radio, alternator, or any modern electrical accessory of your choice. If you need to change your car to negative ground you can click on the link by scrolling down to the footer at the bottom of every page and click on the negative ground conversion instructions.