relay

I need some help getting pointed in the right direction with a stereo power situation. I want the HU to 1) power up when the door is opened remain powered while the vehicle is on (obviously). I then want it to 2) turn off only after the key has been removed AND the door is opened. I can think...

I've installed a relay for my remote turn-on lead from the radio to power up the amplifers and cooling fans. I followed the diagram from this site and connected the remote turn-on from the radio to 86 and connected the ground to 85. I do not have the amplifiers installed yet so I have not...

So I might add some Idq-31 eq's to my setup. Wondering if I should get a relay. I've never had a problem with turning anything on. Just don't want to cook the drz remote out circuit. This is what I am running for stuff that needs to turn on via remote lead: DRZ-9255> JL E6450 JL 250/1 Thanks...