[Roadsters] brake light problem

[Bill Schairer]

I need help with my right hand brake lights.  I may be blind, but I 
cannot find the brake light switch on any of the wiring diagrams.  That 
being said, I have a red/white wire for left brakes and left turn 
signal and a black/white wire for right brakes and right turn signal.  
Three wire plug from the firewall has the red/white, the black/white 
and a green.  With brakes depressed, red/white is hot and black/white 
is not.  With right turn signal on the black/white gets juice.  If I 
splice in juice to the black/white from the brake switch, I get all 
brake lights on right and left but then my right turn signal does not 
work properly - it doesn't flash and juice goes to right and left.  
Left turn signal continues to work properly thru all.  In current 
status, all lights work properly but the right brake lights.  This is a 
1970 1600.  Can anyone help me out?

Bill
San Diego