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» Termpro Audio Forum » Installer's Corner » Installation Tips, Tricks, & Techniques » How do I modify a RCA coax cable to tap into my car's factory wiring?

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Author Topic: How do I modify a RCA coax cable to tap into my car's factory wiring?
PERRYinLA
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(FYI- Also posted in Amplifier section)

What a pickle- I bought a used Bazooka EL1500 off of eBay because the Crutchfield web page said that model accepts speaker-level inputs. Their web page is WRONG! (I emailed them and they have since corrected the error.)

I am NOT interested in using a Line Output Converter. I'd rather tap into the factory woofer input wires before they hit the stock amp, and run an RCA jack to the Bazooka's RCA signal input plug. My factory system does not use RCAs or coax- just individual wires that meet at a connector that plugs into the stock amp. I know which two wires have the needed signal- do I now take a RCA cable, cut the cable, twist the outer and inner coax wires and connect them to the factory line-level signal? I know that ruins the coax "shielding", but I can't see any other way to do it.

You would think this sort of "coax-to-wire- adapter" would be used often in such situations, so how come I can't find such a wire pre-made on any car audio catalog or web page?

Posts: 13 | From: Los Angeles, CA | Registered: May 2002  |  IP: Logged | Report this post to a Moderator
bkman4
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There is a wire to coax adapter. It is called a Line Output Converter. From what I hear David Navone has some of the best ones.

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-Memento

Posts: 103 | From: Baltimore, MD | Registered: Apr 2002  |  IP: Logged | Report this post to a Moderator
Mr_Bob
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the "sheild" on the RCA's is actually the reference signal, the core is the music signal, the amplifier amplifies the difference between the 2, so if you twist them together, the amp will see the same signal on both and will try to amplify nothing...

i believe if you earthed the shield to teh car, and ran a speaker wire from th HU to teh core, you could get a signal, but i'd expect it to be rather dirty, and the speaker outputs will have much higher voltages than your amplifer can handle.
so use a LOC, they're about $10

Posts: 25 | From: Australia | Registered: Jul 2002  |  IP: Logged | Report this post to a Moderator
   

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