No front output?

[russde]

Hi,

Recently bought a 'new-to-me' truck and have some audio questions. The Sony CDX-L550X head unit that came with the truck would not play radio, cd's played fine; sound only came from the rear speakers.

I found an awesome deal on a Pioneer DEH-P690UB and installed it today. Radio reception is good now (FM anyway, no AM ? ), but still have no front speaker output.

I have run new speaker wire from the right front speaker to the adapter that goes between the HU and the trucks wiring and still get nothing. I removed a front speaker and attached it to the rear speaker wire and it works, so the speaker is ok.

What do I measure for at the HU output? IE, do I use a digital volt meter and measure volts from the pos and neg front right speaker wires? amps?

Clueless...

Russ

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[azimuth 5,000+ posts]

is there an option on those head units to turn off the speakers? probably called the internal amplifier.

 

[WKD TC]

check if youre getting an ohm resistance from behind the radio coming from the speakers

 

[russde]

check if youre getting an ohm resistance from behind the radio coming from the speakers

Hmm, not sure exactly what you mean. I ohm'd the speaker wire I ran, it checks out fine.

is there an option on those head units to turn off the speakers? probably called the internal amplifier.

I checked the manual and didn't find anything related to front speakers only.

Thanks guys, keep it up!

Russ