72 doesn’t have a relay. The harness goes from the blower motor over to the radio and other connections in clouding the ground. 

17 minutes ago, 7tooZ said:

72 doesn’t have a relay. The harness goes from the blower motor over to the radio and other connections in clouding the ground. 

Ok good to know. Thank you

Jaymanbikes thanks so much for posting this wire harbness. I have a 73 that I am trying to put back together after a 3 year rebuild. I have the same harness as above and have not been able to get the blower to work. I know the blower motor worked on the bench before re-install. 3 things I hope you might help me with. 1. The red wire above gets pluged into what other wire to get power? 2. Is the taped blue wire used? 3. Does the 73 use the accessory relay as the power source? This download shows the blower diagram but not the source of power. https://www.classiczcars.com/files/file/59-s30-heater-service-manual-dated-2-73/?do=download&confirm=1&csrfKey=1a95bf43be86f186b3055078edc998ea

Edited May 28, 20204 yr by crshowers
sorry wanted to direct my questions to 7tooZ or others who can help me get my blower working