Big-time customer/ Big time problem

[MerkConvoy501]

If new rcas didnt fix the problem but the rca to aux directly into the amp did then am i right for thinking its the hu

 

[BoomTaco64]

thinking the radio is suspect also...where is the unit grounded? sure the rca's are fully connected? did you tape them together?

 

[csu87 10+ year member]

sounds like the HU is causing your issues.

 

[akillj 10+ year member]

Try grounding the RCA's. Some Pioneers seem to have an issue with their RCA grounds.

Make sure all amp ground are sufficient. Sounds like a grounding issue to me.

 

[MerkConvoy501]

thinking the radio is suspect also...where is the unit grounded? sure the rca's are fully connected? did you tape them together?

The head unit is grounded through the wiring harness.. The rcas are fully connected and no they are not taped together.. Its hard because we dont do the guys installs

 

---------- Post added at 03:46 PM ---------- Previous post was at 03:46 PM ----------

 

Its just wierd because if it was the head unit then how come it doesnt have a problem with the key turned back

 

[MerkConvoy501]

Try grounding the RCA's. Some Pioneers seem to have an issue with their RCA grounds.

Make sure all amp ground are sufficient. Sounds like a grounding issue to me.

Its a kenwood dnn991

 

[gckless 5,000+ posts]

It sounds like an amp grounding issue. Whining noise points to that immediately, and it may be shutting off when you turn it up because it's not getting the juice it needs.

 

[garychoffmann 10+ year member]

It's not wierd at all not to have alternator whine when the car isn't running. Check the ground for the amps. Check the batteries

 

[MerkConvoy501]

If its a ground issue how would the is335 rca to 3.5 fix the problem?

 

[garychoffmann 10+ year member]

Because its an isolated source.

 

[garychoffmann 10+ year member]

Did you look at the ground or test the batteries? What's the voltage at the kenwood when it shuts off?

 

[XaznKewLguyX 10+ year member]

Have you tried grounding the amps directly to the car chassis (possibly shorter distance) instead of the battery?

 

[MerkConvoy501]

the extra batterys are in the trunk which is ran to the alternator

 

[XaznKewLguyX 10+ year member]

well its a grounding problem for sure, why not start with the easiest ones which are the amps.. Its very basic but sand off the paint on the chassis and ground the amps to the chassis. What is the reasoning behind grounding the amps to the battery instead of the chassis?

 

[BoomTaco64]

disconnect rca one by one and see if its just one rca causing the issue