PolyPlanar MRD-60 User Manual
Page 5

5
Receiver Side
Power & Speaker Harness Connections
 
Important! 
Disconnect power before installation.
 
If you are not familiar with this type of installation 
seek professional assistance 
 
Use the wired plug end 
(Pig tail) provided to 
make power and speaker 
connections according to 
the diagram on the right. 
Using this connector will make it easy 
to disconnect the radio for adding ad-
ditional features or service. Removing 
the factory plug end will void war-
ranty 
The 12v Positive and Negative con-
nection should be min. 16 or 14 AWG 
depending on length to the battery. 
Be sure to observe the correct polarity 
on the speaker connections 
To Radio
12v out (low current) 
Relay trigger 
5
