For anyone wanting to do some custom wiring, etc. on an OEM Monsoon radio, here are the pinouts as they come OUT of the head unit. I would imagine it's the same for the regular UP3, but I can't verify that.
Pin Wire Color Function
E1 LT GRN Right Front Speaker Output (+)
E2 TAN Left Front Speaker Output (+)
E3 GRY Left Front Speaker Output (-)
E4 LT BLU Right Rear Speaker Output (-)
E5 DK BLU Right Rear Speaker Output (+)
E6 BRN Left Rear Speaker Output (+)
E7 YEL Left Rear Speaker Output (-)
E8 BLK Ground
E9 BLK Ground
E10 DK GRN Antenna Relay Coil Supply Voltage
E11 ORN Battery Positive Voltage
E11 ORN Battery Positive Voltage
E13 BLK Left Front Tweeter Speaker Output (+)
E14 YEL Left Front Tweeter Speaker Output (-)
E15 DK BLU Left Front Midrange Speaker Output (+)
E16 LT BLU Left Front Midrange Speaker Output (-)
F1 DK GRN Right Front Speaker Output (-)
F2 LT GRN Right Front Speaker Tweeter Output (+)
F3 PPL Right Front Speaker Tweeter Output (-)
F4 PPL Left Rear Tweeter Speaker Output (-)
F5 RED Left Rear Tweeter Speaker Output (+)
F6 DK GRN Right Front Midrange Speaker Output (-)
F7 ORN Right Front Midrange Speaker Output (+)
F8 PPL Gain Control Signal
F9 -- Not Used
F10 YEL Right Rear Tweeter Speaker Output (-)
F11 WHT Right Rear Tweeter Speaker Output (+)
F12 -- Not Used
F13 LT BLU/BLK Right Subwoofer Speaker Output (-)
F14 DK GRN Right Subwoofer Speaker Output (+)
F15 DK BLU/WHT Left Subwoofer Speaker Outlet (+)
F16 LT GRN/BLK Left Subwoofer Speaker Outlet (-)
------------------
--------------Forever In My Heart----------------
Jack Daniel Miller --- Dec. 29, 1925 - Oct. 14, 2002
Ruby Cantrell Miller - Jan. 20, 1932 - Aug. 31, 2002
It won't rain all the time. The Sky won't fall forever,
And tho' the night seems long, Your tears won't fall forever.
