Hi to Low converter with remote (4 channel).
CT53-UN02, Connects2.

Universal active system adapter - 4 Channel active system adapter. Converts speaker level to line level.
Generates a 12V feed. 1.0 A.
Connection:
Black: Ground
Yellow: Permanent 12V (Battery)
Red: ACC (Connect to Battery (yellow) if not used)
Blue: Remote out (10A fused)
Speaker level inputs:
White:    Left Front + (Only on 4 channel adapter)
White/black:    Left Front - (Only on 4 channel adapter)
Grey:    Right Front + (Only on 4 channel adapter)
Grey/black:    Right Front - (Only on 4 channel adapter)
Green:   Left Rear +
Green/black:   Left Rear -
Violet:    Right Rear +
Violet/black:    Right Rear -