HELP!! How do I wire my head unit's "System Remote Control" if using an Amp. How to factor in parking brake?
I have two questions.
1. I am installing a Pioneer AVH-P3100DVD head unit in my 2010 Mazda 3. I am also installing an amp and two subs. The wiring harness for the head unit has a blue wire labeled "System Remote Control". The wiring harness for the car has a blue wire also, I'm assuming that's what I would normally connect to. However, I am installing the amp which also requires the remote control wire. My question is, how do I wire the three (car harness, head unit and amp) together? Does the head unit even need to be connected to the car with this wire, should I just wire the head unit directly to the amp or does the head unit need to be connected to both the car and the amp via a Y connection?
2. My next question is about the head unit. It has a wire that connects to the parking brake switch. The reason for this is because the head unit has a DVD player and safety feature that won't allow the unit to operate unless the parking brake is engaged and, as far as I know, the unit won't operate at all unless this wire is connected to something. The question is, first, how does a parking brake switch work? Does the switch complete a circuit when it is released (when the brake is on) or does it complete the circuit when it is depressed (when the brake is off)? Next, is it possible to bypass the switch so that the car always thinks the brake is engaged? Better yet is there a way to bypass this on the head unit, and cut out the parking brake completely?
So:
1. How to wire system remote control from head unit to car and amp.
2. How parking brake SWITCHES work.
3. Always have brake APPEAR to be engaged.
4. Bypass parking brake switch altogether.
You can assume I know very little about car audio installation. Any pictures, websites or other resources would be great. Thanks a lot for your help in advance.
Best answer:
Answer by PoPzzz
1. the blue system remote wire if for your amp. that wire is basically the "power switch" for your amp so its only on when your deck is on.
2. that parking brake switch can be bypassed. the easiest way to do it would be to buy a small toggle switch and mount it somewhere hidden.(glove box perhaps) and then run the wire for the parking brake switch from your deck, to that toggle switch, then simply to any ground in your car. when your start your car and your deck turns on, just simply flip the switch on, and your tv will work all the time. everytime you restart your car you will have to turn the switch off, then back on again and everything will work perfect.
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