this guy attached his remote wire to his 10-amp ignition fuse and is using his factory sterio HU. how does this work without attaching his remote to his HU?
He just tapped into the same turn-on as the HU. That way when the HU comes on, the 12v signal is sent to the amp to turn it on too. You have to do this alot w/ factory HU's.
He prolly has a LOC for the amps signal cables too.