The T-harness for 20-pin MOST OEM amps is used to interface aftermarket amplifiers to the OEM amp to power trunk subs or/and underseat woofers only.
Line Output Converter required and not included. No remote signal is provided by harness.
For MOST OEM amps of 480W and below a LOC is required to handle up to 18V/70W per channel.
For MOST OEM amps of 600W and above a LOC is required to handle 40V/400W per channel.
Please note that the T- Harness will not work if Logic7/HK OEM amp is defective/malfunctioning; harness is not designed to replace MOST OEM amp.