The HK(688) Booster harness with LOC150i is designed to add an aftermarket amp to the 464w OEM Booster to power either a trunk sub or/and the OEM/aftermarket underseat woofers.

LOC150i kit includes:

• LOC150i 40V max input, signal sensing remote Line Output Converter (LOC)
• LOC150i Power/ground/remote out/input PnP cable
• LOC150i RCA cable (24″)
• OEM Booster 42-pin PnP harness
• Underseat woofers interface harness connector

The LOC150i accepts the 25V+ peak outputs of the OEM Booster and provides remote turn-on via signal sensing. Remote turn on active when LOC detects an audio signal from OEM amp, turns off when no signal is detected. External remote turn-on signal required (and not provided) only if aftermarket amp turn-on must be independent of volume level. 

HK (Option 688) Add-a-Sub Harness for RAM/Booster audio systems is available in 2 versions:

• OEM Booster 42-pin PnP T-harness only – no LOC150i
• LOC150i : Gain adjustment, signal clipping indicator, remote out

Please note that this harness/LOC150i does not and cannot replace the OEM Booster. This product does not work with iDrive 6 systems. Harness plugs into OEM Booster.