radio issue - Team Camaro Tech
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post #1 of 3 (permalink) Old Aug 10th, 19, 07:30 PM Thread Starter
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Location: Harrisburg, PA
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radio issue


i recently installed a Retrosound radio in my '67. Installationw ent well, and it generally sounds/performs fantastic.

I do not have the typical radio "noise," but have noticed a "skip" or "hiccup" (best way to describe it) while at high RPM (3200+ on the highway), or when shifting gears and RPMs change quickly.

Not even sure if those are the only triggers or not, TBH.

I can say that this does NOT happen when the car is not running, and when I am just listening on accessory or run.

Anyway...I am thinking this is either an interference problem, or a power problem. Thiking of installing a filter to see if this cleans it up.

Has anyone else ever heard of this problem? It;s not a big issue, just an annoyance for sure.

1967 Camaro
406, 10:1, comp xr282HR, Dart Iron Eagle 200cc, Holley Contender dual plane, Holley 750 DP
Muncie M-20
GM 8.5, 3.73 posi
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post #2 of 3 (permalink) Old Aug 10th, 19, 07:41 PM
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Location: Mountain Springs, Texas
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Re: radio issue

Is this HD radio? If it is it sounds like interference blocked data reception and you ran out of buffered data, hence the skip.

MSD ignition box?


1969 Camaro LSA 6L90E AME subframe and IRS
1969 Camaro vert LS3 4L65E Ridetech level 2 - sold
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Last edited by dhutton; Aug 10th, 19 at 08:01 PM.
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post #3 of 3 (permalink) Old Aug 10th, 19, 07:46 PM
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Join Date: Dec 2002
Location: Saint Louis, Missouri
Posts: 1,127
Re: radio issue

Yep, you just have to troubleshoot things.

I can say I have seen problems with voltages affecting radio's or other electronics due to them being designed to work within a voltage window. Go above or below this operating voltage window and things can be affected such as the audio cutting out but yet the display looking fine as one thing I have seen happen.

If I think it's a voltage problem I wire up my fluke meter with a peak voltage capture feature in that if I hook it up to let's say the battery wire for the radio and have the key off it will measure and memorize the highest voltage it is seeing and then once I start the car and the alternator kicks in and now a higher voltage is present the meter memorized this new high reading. If when I would rev the motor and let's say the voltage peaks at something like 17V for just a split second, the meter captures this voltage. A very quick spike might not be seen with an old school needle type of meter or a meter without a peak hold feature.

I have also seen radio's being affected by a high power device next to them that might be creating interference and on these situations getting more space between the two helps things out. Not always but sometimes it might only involve rotating one 90 degree's on it's mount fixed things.

Sometimes too it's just a cheap design in a piece of electronics. It seems to me I hear more issues about problems with the radio's that are made for older cars but nowhere near the issues with newer aftermarket radio's designed for newer dashes. Who knows too, maybe you have a radio that is not up to par and maybe contact Retrosound and see what they might suggest to do.


1974 Spirit Of America Nova (being restored), 1973 Nova Custom, 1968 Chevy II (Garage Find 2012)

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