I just installed my first sound system over the weekend. Aftermarket radio, front component speakers, an amp for the speakers, and an under seat powered subwoofer. When I turned my car on after the install, the radio turned on but the amp and sub did not. Here is what I have done so far:
- Using a volt meter, I confirmed that the voltage across the amp terminals is the same as the voltage across the battery, but the voltage across the remote turn on lead and the ground terminal is essentially zero.
- If I use a jumper wire between the remote turn on terminal and the positive terminal, the amp turns on.
- I did a continuity test on the two ends of the remote turn on lead to confirm the wire did not get damaged as it was run through the vehicle.
Based on this, I think that the remote turn on lead on my new radio is faulty. Can someone with more experience verify that this conclusion makes sense? I will try to use a different source (cig lighter +12v wire) for the remote turn lead tonight. If this new source works, should I return / replace the radio? I'm worried that a bad remote turn on wire on the radio harness may indicate other problems with the radio that I have not encountered yet. Is this unlikely? I'm new to this, so any insight is appreciated.