Cant seem to figure this out

[Name'sDEEZ]

I finished the installation on this jetta but heres the scenario

1 head unit 3 rca outputs 2 for speakers 1 for woofer. When i connect sub to amp it cuts out (only the sub not the amp) unless i remove either L or R rca. Why is that?

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[1aespinoza 10+ year member]

I finished the installation on this jetta but heres the scenario

1 head unit 3 rca outputs 2 for speakers 1 for woofer. When i connect sub to amp it cuts out (only the sub not the amp) unless i remove either L or R rca. Why is that?

I have never heard of a single RCA output off the radio. Usually it is L&R, even if it is a sub channel. Check the sub's impedance; it may be too low and sending amp into protect.

 

[Buck 5,000+ posts]

Cuts out how? Just stops playing? I would run a test tone, like 60 hz or something, and compare both L/R RCA AC voltages.

Cutting out by adding an RCA is going to maybe be a short, or like said above, the extra power added could cause another issue to pop up, with the amp probably trying to output more power.

I’d really check to make sure your RCA’s are functioning properly, first.

 

[audiobaun 5,000+ posts]

I finished the installation on this jetta but heres the scenario

1 head unit 3 rca outputs 2 for speakers 1 for woofer. When i connect sub to amp it cuts out (only the sub not the amp) unless i remove either L or R rca. Why is that?

What Brand and model is the sub? What OHM load did you wire too? What amplifier are you using for that sub?? More information needed here to try to understand the equipment being used and configurations to rule out issues involved.

 

[Name'sDEEZ]

I have never heard of a single RCA output off the radio. Usually it is L&R, even if it is a sub channel. Check the sub's impedance; it may be too low and sending amp into protect.

Its a pioneer touch screen it has front L & R , rear L & R and sub L & R

 

[Name'sDEEZ]

Cuts out how? Just stops playing? I would run a test tone, like 60 hz or something, and compare both L/R RCA AC voltages.

Cutting out by adding an RCA is going to maybe be a short, or like said above, the extra power added could cause another issue to pop up, with the amp probably trying to output more power.

I’d really check to make sure your RCA’s are functioning properly, first.

Cuts out like the sub doesnt play no more. But i never considered the load capabilities of the HU for now i made it work with a stereo to mono rca wire.

 

[Buck 5,000+ posts]

What’s your gain set at? You’re going to have to do a checklist of things to figure it out.

 

[ikpthegame 10+ year member]

We still need to know what amp is having the issue, make and model. Some mono amps only have 1 preamp input and the other is a output.