Most electronic components such as amplifiers, active crossovers and equalizers need about mA to turn on. One way to work around this issue is to connect the turn-on leads from your amps to a relay, which is triggered by your head unit. PM me if need be. I prefer to use a regular distribution block, not the fused type. People tend to underestimate the amount and size of wires that they need when installing many components in a car audio systems. There are three ways to go:
Mar 3, 11, 71
Can You Wire in Multiple Amps, or Are Are You Limited to Just One?
If you have a Japanese car, most probably it uses Molex connectors plastic plugs Series means from HU to 1st amp, 1st amp to second? Click here to see the discount DVD packages. Most 12 volt relays can supply up to 30 amps of current which is more than enough for all your turn on circuits. If this current draw exceeds the rating of the head unit the circuit can burn out completely. This is crucial to achieve perfect precision with 4, 6, and 8 or more sub woofers.