Bench Overview: Quick look at Installing Modern Radios Into Older Cars. Dealing With Floating Grounds. in the shop.

Not sure how many people will find use in this info, but back in the good old days, (the 70's,80's) Most car radios used a speaker system that only ran 1 wire from the radio toward the speakers. Instead of having a ground wire for each speaker, they simply added a ground at each speaker. This is called a floating ground

Anyway this little video will show how to wire up a modern radio with individual grounds to an older car. You will need to add a small unit in between the radio and the wiring, but they are cheap and plentiful.