Yes, unless it is a Porsche built in the 50s.
The earth (Ground) on any car battery is negative while the live is positive.
Negative - (Black) is Ground, Positive + (Red) is Hot. Ground wire goes to Negative (Black) it goes from negative on battery to engine for ground.
The Suburban has a negative ground system.
The 1937 Oldsmobile is negative ground.
The ground strap is the battery cable that connects from the negative battery post to ground, usually the chassis.
probably because YOU HAVE LOW BATTERY! Also, to jump a battery, it is positive to negative, negative to ground.
You "ground" it or connect it to a negative source that is connected got the negative end of the battery
Usually on the Negative terminal of the battery.
The negative terminal does not go to the starter on a negative ground system. The negative terminal goes to ground.
The ground is negative
Anyplace that sells batteries can get you the correct size for your Porsche. You do not have to purchase a battery from Porsche.
There are 2 battery terminals. A positive or hot and a negative or ground. The positive is slightly larger than the negative.