I was just touching them by hand but your point makes sense. I just though a little bit of warmth would be felt by hand though
Glad they are working.They do get warm when I sit on them for 5+min. I have to say it's good that they're actuslly working but I'm not impressed by the power of these heaters. I don't think they'll heat very quickly when temp fall to subzero.
I have after market android double din with Connect2 harness which sadly doesn't dim with the headlights but the loom/harness has got dimmer cable (I think mismatch between the loom and the stereo thus doesn't dim).They have a thermostat when set to high to avoid overheating. This means they can switch on and off automatically.
Do you have the standard stereo installed? I don’t think the standard stereo has the dimming connection but an aftermarket stereo may have. I connected to an ignition controlled live and an earth so the switches light up when the ignition is on.