Re: Help!! Finally finished
Yes, it appears that you're going to have to put in a simple Bosch style relay in order to make it work. That is not the type of relay you need though.. you need one that looks like this:
Any auto parts store has them..
In some older or cheaper stereos, there is not enough current available on that single turn on wire to make everything work. You have definitely verified that this is the case by disconnecting some of the amps down the line until it works, right? Do NONE of them work or only some? How are you connecting them?
In a pinch.. just to get you on the water today if you don't have the time to run and get a relay and deal with this now, you could always just hook up a jumper wire straight off the battery or a switched ignition source from under the dash. - AS AN EMERGENCY DRIVEWAY HACK JOB just for now to get you playing music until you have time to do it right..
If you truly don't have enough current out of the blue/white stereo wire, then you'll need to wire up a relay that has a straight 12V+ battery connection for constant power, and then use the blue/white wire as a trigger on that relay to make it switch that battery 12V+ to your amps as the turn on signal.
Here is a great diagram that shows exactly how to wire that relay. In this diagram, the fog lights would be your amp turn on output. The switch input would be your blue/white wire from the head unit. It is advisable to use a small fuse when coming off of the battery for safety. Use female spade connectors to attached the wires to the relay.
