Post by
Rex »
https://forums.nicoclub.com/rex-u6324.html
Wed Nov 03, 2004 8:12 am
Sorry, don't have any first hand experience with the 240's, so I can't say for sure.
Every (aftermarket) car stereo made should either have a power ant or amp "turn on" trigger wire. This may not translate to the "adapter/harness" you purchased since your car does not have a power ant. If all else fails, try testing both wires using a multi-meter and see if there's any "trigger voltage" on the leads when the hu powers up.